fix middleware links

Author: igorw

source/middlewares.html

@@ -9,7 +9,7 @@ <h2>Community Middlewares</h2>
     <div class="row-fluid">
         <div class="span6">
             <h3>
-                <a href="https://github.com/symfony/symfony/tree/master/src/Symfony/Component/HttpKernel">HttpCache
+                <a href="https://github.com/symfony/symfony/tree/master/src/Symfony/Component/HttpKernel">HttpCache</a>
             </h3>
             <p class="by">
                 by symfony
@@ -21,7 +21,9 @@ <h3>
             </div>
         </div>
         <div class="span6">
-            <h3>GeoIp</h3>
+            <h3>
+                <a class="btn" href="https://github.com/geocoder-php/StackGeoIp">GeoIp</a>
+            </h3>
             <p class="by">
                 by geocoder
             </p>
@@ -62,7 +64,7 @@ <h3>
     <div class="row-fluid">
         <div class="span6">
             <h3>
-                <a href="https://packagist.org/packages/igorw/stack-oauth">OAuth</a>
+                <a href="https://github.com/igorw/stack-oauth">OAuth</a>
             </h3>
             <p class="by">
                 by igorw