Fix typo.

libpathod/templates/about.html

@@ -5,13 +5,13 @@
     <div class="page-header">
         <h1>
             why
-            <small>this it written.</small>
+            <small>this was written.</small>
         </h1>
     </div>
 
     <p>I started pathod to improve testing for for the <a
     href="http://mitmproxy.org">mitmproxy</a> project. From there, it soon grew
-    into quite a versatile HTTP Swiss army knife.</p>
+    into a versatile HTTP Swiss army knife in its own right.</p>
 </section>