chore: clean up package.json description

Co-authored-by: felickz <1760475+felickz@users.noreply.github.com>

Author: Copilot

package.json

@@ -1,11 +1,7 @@
 {
   "name": "codeql-extractor-iac",
   "version": "1.0.0",
-  "description": "<!-- markdownlint-disable --> <div align=\"center\">",
-  "main": "index.js",
-  "directories": {
-    "doc": "docs"
-  },
+  "description": "markdownlint tooling for CI",
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1"
   },