git merge-repo

Commands.md

@@ -40,6 +40,7 @@
  - [`git pr`](#git-pr)
  - [`git root`](#git-root)
  - [`git delta`](#git-delta)
+ - [`git merge-repo`](#git-merge-repo)
 
 ## git extras
 
@@ -826,4 +827,20 @@ $ git add Makefile
 $ git delta
 Makefile
 README.md
-```
+```
+
+## git merge-repo
+
+Merges two repository histories.
+
+```bash
+$ git merge-repo other-repo.git master new_dir
+```
+
+The above merges `other-repo.git`'s  `master` branch into the current repository's `new_dir` directory.
+
+```bash
+$ git merge-repo [email protected]:tj/git-extras.git master .
+```
+
+The above merges a remote repo's `master` branch into the current repository's directory, not preserving history.