docs: add x permiss. to file, otherwise it will not run (#3186)

Author: sdzialowski-godaddy

Diff for: docs/guides-local-setup.md

@@ -31,19 +31,27 @@ npm install husky --save-dev
 # or
 yarn add husky --dev
 
-# Active hooks
+# Activate hooks
 npx husky install
 # or
 yarn husky install
+```
+
+### Add hook
 
-# Add hook
+```sh
 cat <<EEE > .husky/commit-msg
 #!/bin/sh
 . "\$(dirname "\$0")/_/husky.sh"
 
 npx --no -- commitlint --edit "\${1}"
 EEE
+```
+
+Make hook executable
 
+```sh
+chmod a+x .husky/commit-msg
 ```
 
 **Please note that currently @commitlint/cli doesn't support yarn v2 Plug'n'Play (using yarn v2 with `nodeLinker: node-modules` in your .yarnrc.yml file may work sometimes)**\