Bump version to 0.2.0

Author: danielbachhuber

composer.json

@@ -3,7 +3,7 @@
     "description": "Quickly identify what's slow with WordPress.",
     "homepage": "https://runcommand.io/wp/profile/",
     "license": "GPL-2.0",
-    "version": "0.2.0-alpha",
+    "version": "0.2.0",
     "authors": [],
     "minimum-stability": "dev",
     "autoload": {