fix typos

Author: neroist

examples/web_app_multi_client/index.html

@@ -63,7 +63,7 @@ <h3>Web App Multi-Client Example</h3>
 		You are user number <span id="userNumber">0</span>
 		<br />
 		<br />
-		Your connection numer is <span id="connectionNumber">0</span>
+		Your connection number is <span id="connectionNumber">0</span>
 		<br />
 		<br />
 		There are <span id="userCount">0</span> users connected, and <span id="tabCount">0</span> tabs opened.