add the old snippet md files

old_snippets/git-trim.en.md

@@ -0,0 +1,18 @@
+---
+title: git trim
+seo_description: Code snippet showing how to use git-trim
+date: 2023-02-23T13:09:31+01:00
+draft: false
+snippet_types:
+- git
+---
+
+Easy clean up branches from local that are old or already merged on remote.
+
+```shell
+$ git trim -s -p
+```
+
+- [source](https://codelawd.hashnode.dev/managing-git-branches-with-git-trim#heading-basic-install)
+- [git-trim project](https://github.com/jasonmccreary/git-trim)
+