docs: remove leftover double hyphen in setup guide

Author: Marukome0743

docs/guides/local-setup.md

@@ -34,7 +34,7 @@ npm install --save-dev husky
 npx husky install
 
 # Add commit message linting to commit-msg hook
-echo "npx --no -- commitlint --edit \$1" > .husky/commit-msg
+echo "npx --no commitlint --edit \$1" > .husky/commit-msg
 # Windows users should use ` to escape dollar signs
 echo "npx --no commitlint --edit `$1" > .husky/commit-msg
 ```