Update cheatsheets

tldr/jj-commit

@@ -0,0 +1,21 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# jj commit
+
+> Update the description and create a new change on top.
+> More information: <https://jj-vcs.github.io/jj/latest/cli-reference/#jj-commit>.
+
+- Open editor to write the commit message and then create a new empty commit on top:
+
+`jj commit`
+
+- Commit with the given message:
+
+`jj commit {{[-m|--message]}} "{{message}}"`
+
+- Interactively choose which changes to include:
+
+`jj commit {{[-i|--interactive]}}`