Add merge snippets

snippets/merge-branch-merge-commit.md

@@ -0,0 +1,21 @@
+---
+title: Merge a branch and create a merge commit
+tags: repository,branch,intermediate
+---
+
+Merges a branch into the current branch, creating a merge commit.
+
+- Use `git checkout <target-branch>` to switch to the branch into which you want to merge.
+- Use `git merge --no-ff -m <message> <source-branch>` to merge a branch into the current branch, creating a merge commit with the specified `<message>`.
+
+```sh
+git checkout <target-branch>
+git merge --no-ff -m <message> <source-branch>
+```
+
+```sh
+git checkout master
+git merge --no-ff -m "Merge patch-1" patch-1
+# Merges the `patch-1` branch into `master` and creates a commit
+# with the message "Merge patch-1"
+```

snippets/merge-branch.md

@@ -0,0 +1,19 @@
+---
+title: Merge a branch
+tags: repository,branch,beginner
+---
+
+Merges a branch into the current branch.
+
+- Use `git checkout <target-branch>` to switch to the branch into which you want to merge.
+- Use `git merge <source-branch>` to merge a branch into the current branch.
+
+```sh
+git checkout <target-branch>
+git merge <source-branch>
+```
+
+```sh
+git checkout master
+git merge patch-1 # Merges the `patch-1` branch into `master`
+```