updated chrome manifest

clients/chrome/manifest.json

@@ -7,11 +7,13 @@
 
   "manifest_version": 2,
   "name": "code the micro:bit",
-  "version": "0.1.0",
+  "version": "0.6.0",
   "author": "Microsoft Corporation",
   "short_name": "code the micro:bit",
 
-  "description": "This extension reads the serial output from connected BBC micro:bit and sends it to https://codethemicrobit.com.",
+  "description": "Extension for https://codethemicrobit.com.",
+  "homepage_url": "https://codethemicrobit.com",
+  "offline_enabled": "true",
   "icons": {
     "48": "logo48.png",
     "128": "logo128.png"
@@ -23,6 +25,6 @@
   ],
 
   "externally_connectable": {
-    "matches": [ "*://localhost/*", "https://*.pxt.io/*", "https://codethemicrobit.com/*" ]
+    "matches": [ "*://localhost/*", "https://codethemicrobit.com/*", "https://*.codethemicrobit.com/*" ]
   }
 }