update funding detail

Author: amitguptagwl

package.json

@@ -58,10 +58,13 @@
     "webpack-cli": "^4.9.1"
   },
   "typings": "src/fxp.d.ts",
-  "funding": {
+  "funding": [{
     "type": "paypal",
     "url": "https://paypal.me/naturalintelligence"
-  },
+  },{
+    "type": "github",
+    "url": "https://github.com/sponsors/NaturalIntelligence"
+  }],
   "dependencies": {
     "strnum": "^1.0.5"
   }