diff --git a/01_essentials/01-basics/README.md b/01-essentials/01-basics/README.md
similarity index 100%
rename from 01_essentials/01-basics/README.md
rename to 01-essentials/01-basics/README.md
diff --git a/01_essentials/01-basics/reset.ps1 b/01-essentials/01-basics/reset.ps1
similarity index 100%
rename from 01_essentials/01-basics/reset.ps1
rename to 01-essentials/01-basics/reset.ps1
diff --git a/01_essentials/01-basics/setup.ps1 b/01-essentials/01-basics/setup.ps1
similarity index 100%
rename from 01_essentials/01-basics/setup.ps1
rename to 01-essentials/01-basics/setup.ps1
diff --git a/01_essentials/01-basics/verify.ps1 b/01-essentials/01-basics/verify.ps1
similarity index 100%
rename from 01_essentials/01-basics/verify.ps1
rename to 01-essentials/01-basics/verify.ps1
diff --git a/01_essentials/02-history/README.md b/01-essentials/02-history/README.md
similarity index 100%
rename from 01_essentials/02-history/README.md
rename to 01-essentials/02-history/README.md
diff --git a/01_essentials/02-history/reset.ps1 b/01-essentials/02-history/reset.ps1
similarity index 100%
rename from 01_essentials/02-history/reset.ps1
rename to 01-essentials/02-history/reset.ps1
diff --git a/01_essentials/02-history/setup.ps1 b/01-essentials/02-history/setup.ps1
similarity index 100%
rename from 01_essentials/02-history/setup.ps1
rename to 01-essentials/02-history/setup.ps1
diff --git a/01_essentials/02-history/verify.ps1 b/01-essentials/02-history/verify.ps1
similarity index 100%
rename from 01_essentials/02-history/verify.ps1
rename to 01-essentials/02-history/verify.ps1
diff --git a/01_essentials/03-branching-and-merging/README.md b/01-essentials/03-branching-and-merging/README.md
similarity index 100%
rename from 01_essentials/03-branching-and-merging/README.md
rename to 01-essentials/03-branching-and-merging/README.md
diff --git a/01_essentials/03-branching-and-merging/reset.ps1 b/01-essentials/03-branching-and-merging/reset.ps1
similarity index 100%
rename from 01_essentials/03-branching-and-merging/reset.ps1
rename to 01-essentials/03-branching-and-merging/reset.ps1
diff --git a/01_essentials/03-branching-and-merging/setup.ps1 b/01-essentials/03-branching-and-merging/setup.ps1
similarity index 100%
rename from 01_essentials/03-branching-and-merging/setup.ps1
rename to 01-essentials/03-branching-and-merging/setup.ps1
diff --git a/01_essentials/03-branching-and-merging/verify.ps1 b/01-essentials/03-branching-and-merging/verify.ps1
similarity index 100%
rename from 01_essentials/03-branching-and-merging/verify.ps1
rename to 01-essentials/03-branching-and-merging/verify.ps1
diff --git a/01_essentials/04-cherry-pick/README.md b/01-essentials/04-cherry-pick/README.md
similarity index 100%
rename from 01_essentials/04-cherry-pick/README.md
rename to 01-essentials/04-cherry-pick/README.md
diff --git a/01_essentials/04-cherry-pick/reset.ps1 b/01-essentials/04-cherry-pick/reset.ps1
similarity index 100%
rename from 01_essentials/04-cherry-pick/reset.ps1
rename to 01-essentials/04-cherry-pick/reset.ps1
diff --git a/01_essentials/04-cherry-pick/setup.ps1 b/01-essentials/04-cherry-pick/setup.ps1
similarity index 100%
rename from 01_essentials/04-cherry-pick/setup.ps1
rename to 01-essentials/04-cherry-pick/setup.ps1
diff --git a/01_essentials/04-cherry-pick/verify.ps1 b/01-essentials/04-cherry-pick/verify.ps1
similarity index 100%
rename from 01_essentials/04-cherry-pick/verify.ps1
rename to 01-essentials/04-cherry-pick/verify.ps1
diff --git a/01_essentials/05-revert/README.md b/01-essentials/05-revert/README.md
similarity index 100%
rename from 01_essentials/05-revert/README.md
rename to 01-essentials/05-revert/README.md
diff --git a/01_essentials/05-revert/reset.ps1 b/01-essentials/05-revert/reset.ps1
similarity index 100%
rename from 01_essentials/05-revert/reset.ps1
rename to 01-essentials/05-revert/reset.ps1
diff --git a/01_essentials/05-revert/setup.ps1 b/01-essentials/05-revert/setup.ps1
similarity index 100%
rename from 01_essentials/05-revert/setup.ps1
rename to 01-essentials/05-revert/setup.ps1
diff --git a/01_essentials/05-revert/verify.ps1 b/01-essentials/05-revert/verify.ps1
similarity index 100%
rename from 01_essentials/05-revert/verify.ps1
rename to 01-essentials/05-revert/verify.ps1
diff --git a/01_essentials/06-reset/README.md b/01-essentials/06-reset/README.md
similarity index 100%
rename from 01_essentials/06-reset/README.md
rename to 01-essentials/06-reset/README.md
diff --git a/01_essentials/06-reset/reset.ps1 b/01-essentials/06-reset/reset.ps1
similarity index 100%
rename from 01_essentials/06-reset/reset.ps1
rename to 01-essentials/06-reset/reset.ps1
diff --git a/01_essentials/06-reset/setup.ps1 b/01-essentials/06-reset/setup.ps1
similarity index 100%
rename from 01_essentials/06-reset/setup.ps1
rename to 01-essentials/06-reset/setup.ps1
diff --git a/01_essentials/06-reset/verify.ps1 b/01-essentials/06-reset/verify.ps1
similarity index 100%
rename from 01_essentials/06-reset/verify.ps1
rename to 01-essentials/06-reset/verify.ps1
diff --git a/01_essentials/07-stash/README.md b/01-essentials/07-stash/README.md
similarity index 100%
rename from 01_essentials/07-stash/README.md
rename to 01-essentials/07-stash/README.md
diff --git a/01_essentials/07-stash/reset.ps1 b/01-essentials/07-stash/reset.ps1
similarity index 100%
rename from 01_essentials/07-stash/reset.ps1
rename to 01-essentials/07-stash/reset.ps1
diff --git a/01_essentials/07-stash/setup.ps1 b/01-essentials/07-stash/setup.ps1
similarity index 100%
rename from 01_essentials/07-stash/setup.ps1
rename to 01-essentials/07-stash/setup.ps1
diff --git a/01_essentials/07-stash/verify.ps1 b/01-essentials/07-stash/verify.ps1
similarity index 100%
rename from 01_essentials/07-stash/verify.ps1
rename to 01-essentials/07-stash/verify.ps1
diff --git a/01_essentials/08-multiplayer/FACILITATOR-SETUP.md b/01-essentials/08-multiplayer/FACILITATOR-SETUP.md
similarity index 100%
rename from 01_essentials/08-multiplayer/FACILITATOR-SETUP.md
rename to 01-essentials/08-multiplayer/FACILITATOR-SETUP.md
diff --git a/01_essentials/08-multiplayer/README.md b/01-essentials/08-multiplayer/README.md
similarity index 100%
rename from 01_essentials/08-multiplayer/README.md
rename to 01-essentials/08-multiplayer/README.md
diff --git a/02_advanced/01-rebasing/README.md b/02-advanced/01-rebasing/README.md
similarity index 100%
rename from 02_advanced/01-rebasing/README.md
rename to 02-advanced/01-rebasing/README.md
diff --git a/02_advanced/01-rebasing/reset.ps1 b/02-advanced/01-rebasing/reset.ps1
similarity index 100%
rename from 02_advanced/01-rebasing/reset.ps1
rename to 02-advanced/01-rebasing/reset.ps1
diff --git a/02_advanced/01-rebasing/setup.ps1 b/02-advanced/01-rebasing/setup.ps1
similarity index 100%
rename from 02_advanced/01-rebasing/setup.ps1
rename to 02-advanced/01-rebasing/setup.ps1
diff --git a/02_advanced/01-rebasing/verify.ps1 b/02-advanced/01-rebasing/verify.ps1
similarity index 100%
rename from 02_advanced/01-rebasing/verify.ps1
rename to 02-advanced/01-rebasing/verify.ps1
diff --git a/02_advanced/02-interactive-rebase/README.md b/02-advanced/02-interactive-rebase/README.md
similarity index 100%
rename from 02_advanced/02-interactive-rebase/README.md
rename to 02-advanced/02-interactive-rebase/README.md
diff --git a/02_advanced/02-interactive-rebase/reset.ps1 b/02-advanced/02-interactive-rebase/reset.ps1
similarity index 100%
rename from 02_advanced/02-interactive-rebase/reset.ps1
rename to 02-advanced/02-interactive-rebase/reset.ps1
diff --git a/02_advanced/02-interactive-rebase/setup.ps1 b/02-advanced/02-interactive-rebase/setup.ps1
similarity index 100%
rename from 02_advanced/02-interactive-rebase/setup.ps1
rename to 02-advanced/02-interactive-rebase/setup.ps1
diff --git a/02_advanced/02-interactive-rebase/verify.ps1 b/02-advanced/02-interactive-rebase/verify.ps1
similarity index 100%
rename from 02_advanced/02-interactive-rebase/verify.ps1
rename to 02-advanced/02-interactive-rebase/verify.ps1
diff --git a/02_advanced/03-worktrees/README.md b/02-advanced/03-worktrees/README.md
similarity index 100%
rename from 02_advanced/03-worktrees/README.md
rename to 02-advanced/03-worktrees/README.md
diff --git a/02_advanced/03-worktrees/reset.ps1 b/02-advanced/03-worktrees/reset.ps1
similarity index 100%
rename from 02_advanced/03-worktrees/reset.ps1
rename to 02-advanced/03-worktrees/reset.ps1
diff --git a/02_advanced/03-worktrees/setup.ps1 b/02-advanced/03-worktrees/setup.ps1
similarity index 100%
rename from 02_advanced/03-worktrees/setup.ps1
rename to 02-advanced/03-worktrees/setup.ps1
diff --git a/02_advanced/03-worktrees/verify.ps1 b/02-advanced/03-worktrees/verify.ps1
similarity index 100%
rename from 02_advanced/03-worktrees/verify.ps1
rename to 02-advanced/03-worktrees/verify.ps1
diff --git a/02_advanced/04-bisect/README.md b/02-advanced/04-bisect/README.md
similarity index 100%
rename from 02_advanced/04-bisect/README.md
rename to 02-advanced/04-bisect/README.md
diff --git a/02_advanced/04-bisect/reset.ps1 b/02-advanced/04-bisect/reset.ps1
similarity index 100%
rename from 02_advanced/04-bisect/reset.ps1
rename to 02-advanced/04-bisect/reset.ps1
diff --git a/02_advanced/04-bisect/setup.ps1 b/02-advanced/04-bisect/setup.ps1
similarity index 100%
rename from 02_advanced/04-bisect/setup.ps1
rename to 02-advanced/04-bisect/setup.ps1
diff --git a/02_advanced/04-bisect/verify.ps1 b/02-advanced/04-bisect/verify.ps1
similarity index 100%
rename from 02_advanced/04-bisect/verify.ps1
rename to 02-advanced/04-bisect/verify.ps1
diff --git a/02_advanced/05-blame/README.md b/02-advanced/05-blame/README.md
similarity index 100%
rename from 02_advanced/05-blame/README.md
rename to 02-advanced/05-blame/README.md
diff --git a/02_advanced/05-blame/reset.ps1 b/02-advanced/05-blame/reset.ps1
similarity index 100%
rename from 02_advanced/05-blame/reset.ps1
rename to 02-advanced/05-blame/reset.ps1
diff --git a/02_advanced/05-blame/setup.ps1 b/02-advanced/05-blame/setup.ps1
similarity index 100%
rename from 02_advanced/05-blame/setup.ps1
rename to 02-advanced/05-blame/setup.ps1
diff --git a/02_advanced/05-blame/verify.ps1 b/02-advanced/05-blame/verify.ps1
similarity index 100%
rename from 02_advanced/05-blame/verify.ps1
rename to 02-advanced/05-blame/verify.ps1
diff --git a/02_advanced/06-merge-strategies/README.md b/02-advanced/06-merge-strategies/README.md
similarity index 100%
rename from 02_advanced/06-merge-strategies/README.md
rename to 02-advanced/06-merge-strategies/README.md
diff --git a/02_advanced/06-merge-strategies/reset.ps1 b/02-advanced/06-merge-strategies/reset.ps1
similarity index 100%
rename from 02_advanced/06-merge-strategies/reset.ps1
rename to 02-advanced/06-merge-strategies/reset.ps1
diff --git a/02_advanced/06-merge-strategies/setup.ps1 b/02-advanced/06-merge-strategies/setup.ps1
similarity index 100%
rename from 02_advanced/06-merge-strategies/setup.ps1
rename to 02-advanced/06-merge-strategies/setup.ps1
diff --git a/02_advanced/06-merge-strategies/verify.ps1 b/02-advanced/06-merge-strategies/verify.ps1
similarity index 100%
rename from 02_advanced/06-merge-strategies/verify.ps1
rename to 02-advanced/06-merge-strategies/verify.ps1