chore: add npm keywords

Author: TurtIeSocks

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-leaflet-supercluster",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "description": "React wrapper for the supercluster library",
   "repository": "https://github.com/TurtIeSocks/react-leaflet-supercluster",
   "author": "TurtIeSocks <58572875+TurtIeSocks@users.noreply.github.com>",
@@ -9,6 +9,15 @@
   "files": [
     "dist"
   ],
+  "keywords": [
+    "react",
+    "leaflet",
+    "react-leaflet",
+    "supercluster",
+    "markercluster",
+    "marker",
+    "cluster"
+  ],
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
   "scripts": {