CS Fixer dev installation and documentation

* Installed PHP CS Fixer as dev dependency so that global installation is not required for dev
* Added documentation for CS Fixer in readme and in composer
* Added a PHP CS Dry run configuration

composer.json

@@ -26,6 +26,7 @@
         "spatie/commonmark-highlighter": "^2.1"
     },
     "require-dev": {
+        "friendsofphp/php-cs-fixer": "^2.18",
         "symfony/var-dumper": "^5.0"
     },
     "autoload": {
@@ -40,8 +41,15 @@
     "scripts": {
         "csfix": [
             "php-cs-fixer fix src stubs --config=.php_cs"
+        ],
+        "csfix-review": [
+            "php-cs-fixer fix src stubs --config=.php_cs --dry-run -v"
         ]
     },
+    "scripts-descriptions": {
+        "csfix": "Runs PHP CS Fixer to fix project files.",
+        "csfix-review": "Runs PHP CS Fixer to show the details of which files are out of code standard."
+    },
     "minimum-stability": "dev",
     "prefer-stable": true
 }

readme.md

@@ -99,6 +99,18 @@ ibis sample dark
 
 This command will use the generated files from the `ibis build` command to generate samples from your PDF eBook. You can configure which pages to include in the sample by updating the `/ibis.php` file.
 
+## Development
+
+This project uses PHP CS Fixer with a code standard defined in `.php_cs`.  
+
+To review code out of style, you can run the fix command as a dry run.  Run the composer script like this:
+
+`composer run csfix-review`
+
+To fix the source code, run the following composer script:
+
+`composer run csfix`
+
 ## Credits
 
 - [Mohamed Said](https://github.com/themsaid)