Add repository field to package.json for better project visibility

Author: mdroidian

package.json

@@ -16,6 +16,10 @@
   },
   "sideEffects": false,
   "license": "MIT",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/RoamJS/roamjs-components"
+  },
   "peerDependencies": {
     "@blueprintjs/core": "3.50.4",
     "@blueprintjs/datetime": "3.23.14",