📚 Add documentation and metadata for new tools: just, rg, and xh

just/CHEATSHEET.md

@@ -0,0 +1,25 @@
+# just
+
+## Meta
+
+```yaml
+name: just
+repo: https://github.com/casey/just
+description: 🤖 Just a command runner
+```
+
+## Usage
+
+Sample `justfile`:
+```justfile
+_:
+  @just --list
+
+alias p:=publish
+alias pub:=publish
+
+# Publish
+publish:
+  update-cheatsheet.ts
+  commit.ts
+```