chore: add docs link to package.json

Author: keerl

plugin/package.json

@@ -51,6 +51,7 @@
         "type": "git",
         "url": "https://github.com/nativescript-community/ble"
     },
+    "homepage": "https://nativescript-community.github.io/ble",
     "dependencies": {
         "@nativescript-community/observable": "^2.0.8",
         "make-error": "1.3.6",