docs(readme): mention quoting [dev] in zsh for uv pip install

Author: manavgup

README.md

@@ -250,7 +250,7 @@ make serve                 # gunicorn on :4444
 
 ```bash
 uv venv && source .venv/bin/activate
-uv pip install -e .[dev]
+uv pip install -e '.[dev]' # IMPORTANT: in zsh, quote to disable glob expansion!
 ```
 
 ### pip (alternative)