Added keywords to composer.json.

Author: hexydec

composer.json

@@ -3,13 +3,15 @@
     "description": "A token based CSS Document parser and minifier written in PHP",
     "type": "library",
     "license": "MIT",
+	"homepage": "https://github.com/hexydec/cssdoc",
     "authors": [
         {
             "name": "Will Earp",
             "email": "[email protected]",
-			"homepage": "https://github.com/hexydec/cssdoc"
+			"homepage": "https://github.com/hexydec"
         }
     ],
+	"keywords": ["css", "stylesheet", "minifier", "minify", "parser", "compiler"],
     "minimum-stability": "stable",
     "require": {
         "php": ">=7.4",