[Wami] Fix protocol_hanlders definition (#64)

* [Wami] Fix protocol_hanlders definition

* resolve comment: add full url path

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Co-authored-by: Kun Zhang <zhangkun@microsoft.com>

Author: zhangkun902

wami/manifest.json

@@ -32,7 +32,7 @@
   "protocol_handlers": [
     {
       "protocol": "web+wami",
-      "url": "./?url=%s"
+      "url": "/Demos/wami/?url=%s"
     }
   ],
   "share_target": {