feat: use switch instead of checkout

GIT-CHEATSHEET.md

@@ -117,24 +117,19 @@ git branch -D <branch-name>
 Force delete a branch (even if not merged).
 
 ```bash
-git checkout <branch-name>
+git switch <branch-name>
 ```
 Switch to a different branch.
 
 ```bash
-git checkout -b <branch-name>
+git switch -c <branch-name>
 ```
 Create a new branch and switch to it in one command.
 
 ```bash
-git switch <branch-name>
+git switch -
 ```
-Modern command to switch branches (alternative to checkout).
-
-```bash
-git switch -c <branch-name>
-```
-Create a new branch and switch to it (alternative to checkout -b).
+Switch back to the previous branch.
 
 ### Merging
 
@@ -162,6 +157,23 @@ git commit
 ```
 Stage resolved files and complete the merge.
 
+### Restoring Files
+
+```bash
+git restore <file>
+```
+Discard changes in working directory (restore from last commit).
+
+```bash
+git restore --staged <file>
+```
+Unstage a file (remove from staging area but keep changes).
+
+```bash
+git restore --source=<commit> <file>
+```
+Restore a file to its state in a specific commit.
+
 ---
 
 ## Advanced
@@ -420,7 +432,8 @@ Automatically test commits using a script to find the bad commit.
 
 ### Undoing Changes
 
-- **Haven't committed yet?** Use `git checkout -- <file>` or `git restore <file>` to discard changes
+- **Haven't committed yet?** Use `git restore <file>` to discard changes
+- **Staged but want to unstage?** Use `git restore --staged <file>`
 - **Committed to wrong branch?** Use `git cherry-pick` to copy the commit to the right branch
 - **Want to change last commit message?** Use `git commit --amend`
 - **Pushed to remote already?** Use `git revert` (not reset) to safely undo
@@ -459,7 +472,7 @@ Each workshop module focuses on specific commands:
 
 - **Module 01**: init, add, commit, status
 - **Module 02**: log, show, diff
-- **Module 03**: branch, checkout/switch
+- **Module 03**: branch, switch
 - **Module 04**: merge (fast-forward and three-way)
 - **Module 05**: merge (conflict resolution)
 - **Module 06**: rebase