update faq to reflect init's signature

Author: nuclearace

Usage Docs/FAQ.md

@@ -15,7 +15,7 @@ Take this code for example:
 ```swift
 class SocketManager {
     func addHandlers() {
-        let socket = SocketIOClient(socketURL: "http://somesocketioserver.com")
+        let socket = SocketIOClient(socketURL: URL(string: "http://somesocketioserver.com")!)
 
         socket.on("myEvent") {data, ack in
             print(data)
@@ -32,7 +32,7 @@ A correct way would be:
 
 ```swift
 class SocketManager {
-    let socket = SocketIOClient(socketURL: "http://somesocketioserver.com")
+    let socket = SocketIOClient(socketURL: URL(string: "http://somesocketioserver.com")!)
 
     func addHandlers() {
         socket.on("myEvent") {data, ack in

docs/faq.html

@@ -157,7 +157,7 @@ <h2 id='why-isn-39-t-my-event-handler-being-called' class='heading'>Why isn&rsqu
 <p>Take this code for example:</p>
 <pre class="highlight swift"><code><span class="kd">class</span> <span class="kt">SocketManager</span> <span class="p">{</span>
     <span class="kd">func</span> <span class="nf">addHandlers</span><span class="p">()</span> <span class="p">{</span>
-        <span class="k">let</span> <span class="nv">socket</span> <span class="o">=</span> <span class="kt">SocketIOClient</span><span class="p">(</span><span class="nv">socketURL</span><span class="p">:</span> <span class="s">"http://somesocketioserver.com"</span><span class="p">)</span>
+        <span class="k">let</span> <span class="nv">socket</span> <span class="o">=</span> <span class="kt">SocketIOClient</span><span class="p">(</span><span class="nv">socketURL</span><span class="p">:</span> <span class="kt">URL</span><span class="p">(</span><span class="nv">string</span><span class="p">:</span> <span class="s">"http://somesocketioserver.com"</span><span class="p">)</span><span class="o">!</span><span class="p">)</span>
 
         <span class="n">socket</span><span class="o">.</span><span class="nf">on</span><span class="p">(</span><span class="s">"myEvent"</span><span class="p">)</span> <span class="p">{</span><span class="n">data</span><span class="p">,</span> <span class="n">ack</span> <span class="k">in</span>
             <span class="nf">print</span><span class="p">(</span><span class="n">data</span><span class="p">)</span>
@@ -172,7 +172,7 @@ <h2 id='why-isn-39-t-my-event-handler-being-called' class='heading'>Why isn&rsqu
 
 <p>A correct way would be:</p>
 <pre class="highlight swift"><code><span class="kd">class</span> <span class="kt">SocketManager</span> <span class="p">{</span>
-    <span class="k">let</span> <span class="nv">socket</span> <span class="o">=</span> <span class="kt">SocketIOClient</span><span class="p">(</span><span class="nv">socketURL</span><span class="p">:</span> <span class="s">"http://somesocketioserver.com"</span><span class="p">)</span>
+    <span class="k">let</span> <span class="nv">socket</span> <span class="o">=</span> <span class="kt">SocketIOClient</span><span class="p">(</span><span class="nv">socketURL</span><span class="p">:</span> <span class="kt">URL</span><span class="p">(</span><span class="nv">string</span><span class="p">:</span> <span class="s">"http://somesocketioserver.com"</span><span class="p">)</span><span class="o">!</span><span class="p">)</span>
 
     <span class="kd">func</span> <span class="nf">addHandlers</span><span class="p">()</span> <span class="p">{</span>
         <span class="n">socket</span><span class="o">.</span><span class="nf">on</span><span class="p">(</span><span class="s">"myEvent"</span><span class="p">)</span> <span class="p">{</span><span class="n">data</span><span class="p">,</span> <span class="n">ack</span> <span class="k">in</span>