(pkg): add 'homepage' and 'bugs' fields

- put them around the 'repository' field

Author: agilgur5

package.json

@@ -9,10 +9,14 @@
   ],
   "author": "Anton Gilgur",
   "license": "Apache-2.0",
+  "homepage": "https://github.com/agilgur5/react-signature-canvas",
   "repository": {
     "type": "git",
     "url": "https://github.com/agilgur5/react-signature-canvas.git"
   },
+  "bugs": {
+    "url": "https://github.com/agilgur5/react-signature-canvas/issues"
+  },
   "keywords": [
     "react",
     "react-component",