Downgrade react to 16.x & add github links for npm

Author: boazpoolman

package.json

@@ -9,9 +9,9 @@
   },
   "dependencies": {
     "immutable": "^4.0.0-rc.12",
-    "react": "^17.0.1",
+    "react": "^16.13.1",
     "react-diff-viewer": "^3.1.1",
-    "react-dom": "^17.0.1",
+    "react-dom": "^16.9.0",
     "react-redux": "^7.2.2",
     "redux": "^4.0.5",
     "redux-immutable": "^4.0.0",
@@ -30,6 +30,10 @@
       "url": "https://github.com/boazpoolman"
     }
   ],
+  "bugs": {
+    "url": "https://github.com/boazpoolman/strapi-plugin-config-sync/issues"
+  },
+  "homepage": "https://github.com/boazpoolman/strapi-plugin-config-sync#readme",
   "engines": {
     "node": ">=10.16.0 <=14.x.x",
     "npm": ">=6.0.0"