Update hacs.json to unblock HACS issue (#108)

* Update hacs.json to unblock HACS issue, add version key

Author: tmcarr

custom_components/remote_homeassistant/manifest.json

@@ -12,5 +12,6 @@
   "requirements": [],
   "zeroconf": [
     "_home-assistant._tcp.local."
-  ]
+  ],
+  "version": "3.1"
 }