Update cheatsheets

git-merge-into

@@ -0,0 +1,18 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# git merge-into
+
+> Merge one branch into another branch.
+> Part of `git-extras`.
+> More information: <https://github.com/tj/git-extras/blob/master/Commands.md#git-merge-into>.
+
+- Merge a source branch into a specific destination branch:
+
+`git merge-into {{source_branch}} {{destination_branch}}`
+
+- Merge current branch into a specific destination branch:
+
+`git merge-into {{destination_branch}}`