update documentation

package.json

@@ -2,7 +2,7 @@
   "name": "@design.estate/dees-element",
   "version": "2.0.34",
   "private": false,
-  "description": "a custom element class extending lit element class",
+  "description": "A library for creating custom elements extending the lit element class with additional functionalities.",
   "main": "dist_ts/index.js",
   "typings": "dist_ts/index.d.ts",
   "type": "module",
@@ -40,5 +40,17 @@
     "cli.js",
     "npmextra.json",
     "readme.md"
+  ],
+  "keywords": [
+    "custom elements",
+    "lit",
+    "TypeScript",
+    "CSS manager",
+    "themes",
+    "decorators",
+    "async directive",
+    "web components",
+    "reactive programming",
+    "DOM manipulation"
   ]
-}
+}