git-for-each-ref: add page (#16531)

* git for-each-ref: add page

* git for-each-ref: use space separator for options

pages/common/git-for-each-ref.md

@@ -0,0 +1,36 @@
+# git for-each-ref
+
+> List and optionally format references (branches, tags) in a Git repository.
+> More information: <https://git-scm.com/docs/git-for-each-ref>.
+
+- List all refs (branches and tags):
+
+`git for-each-ref`
+
+- List only branches:
+
+`git for-each-ref refs/heads/`
+
+- List only tags:
+
+`git for-each-ref refs/tags/`
+
+- Show branches merged into HEAD:
+
+`git for-each-ref --merged HEAD refs/heads/`
+
+- List short names of all refs:
+
+`git for-each-ref --format "%(refname:short)"`
+
+- Sort refs by committer date (most recent first):
+
+`git for-each-ref --sort -committerdate`
+
+- Sort refs by committer date (oldest first):
+
+`git for-each-ref --sort committerdate`
+
+- Limit output to a specified number of refs:
+
+`git for-each-ref --count {{count}}`