Merge pull request #9 from netresearch/fix-author-url

fix: standardize plugin.json author URL to company website

Author: CybotTM

.claude-plugin/plugin.json

@@ -6,7 +6,7 @@
   "license": "MIT",
   "author": {
     "name": "Netresearch DTT GmbH",
-    "url": "https://github.com/netresearch/typo3-core-contributions-skill"
+    "url": "https://www.netresearch.de"
   },
   "skills": [
     "./skills/typo3-core-contributions"