update angular version in keywords

package.json

@@ -13,8 +13,8 @@
   "private": false,
   "keywords": [
     "angular",
-    "angular9",
-    "angular 9",
+    "angular13",
+    "angular 13",
     "aspnetboilerplate"
   ],
   "author": {
@@ -66,4 +66,4 @@
     "tslint": "~6.1.3",
     "typescript": "~4.5.4"
   }
-}
+}