Merge pull request appwrite#99 from antoniopetricc/patch-1

Update README.md

Author: christyjacob4

README.md

@@ -91,7 +91,7 @@ For web in order to capture the OAuth2 callback URL and send it to the applicati
 close the window.
 <script>
   window.opener.postMessage({
-    flutter-web-auth-2: window.___location.href
+    'flutter-web-auth-2': window.___location.href
   }, window.___location.origin);
   window.close();
 </script>
@@ -201,4 +201,4 @@ This library is auto-generated by Appwrite custom [SDK Generator](https://github
 
 ## License
 
-Please see the [BSD-3-Clause license](https://raw.githubusercontent.com/appwrite/appwrite/master/LICENSE) file for more information.
+Please see the [BSD-3-Clause license](https://raw.githubusercontent.com/appwrite/appwrite/master/LICENSE) file for more information.