docs: update cli.md

Author: MichaelCurrin

docs/cli.md

@@ -30,7 +30,7 @@ $ npm ci
 ### Build and link the CLI tools
 
 ```sh
-$ npm run cli:install
+$ npm run cli
 ```
 
 Verify installation:
@@ -92,6 +92,8 @@ The behavior depends on how Git treats files, so you should know these points:
 
 ## Uninstall the linked CLI (optional)
 
+If you get permission denied error, you can do this and then go back to the install step.
+
 ```sh
 $ npm unlink -g auto-commit-msg
 ```