Improve storage-helpers page

Author: jrosdahl

ccache.css

@@ -220,6 +220,11 @@ blockquote {
     font-style: italic;
 }
 
+img {
+  max-width: 100%;
+  height: auto;
+}
+
 pre {
   border: 1px #777 dashed;
   padding: 1em;

storage-helpers.empy

@@ -31,7 +31,7 @@
   <tr>
     <td><code>http</code>, <code>https</code></td>
     <td><a href="https://github.com/ccache/ccache-storage-http-go">ccache/ccache-storage-http-go</a></td>
-    <td>Reference implementation (Go)</td>
+    <td>Reference implementation (Go), prebuilt binaries available</td>
   </tr>
 </table>
 

storage-helpers.html

@@ -94,7 +94,7 @@ <h2>Available helpers</h2>
 <tr>
 <td><code>http</code>, <code>https</code></td>
 <td><a href="https://github.com/ccache/ccache-storage-http-go">ccache/ccache-storage-http-go</a></td>
-<td>Reference implementation (Go)</td>
+<td>Reference implementation (Go), prebuilt binaries available</td>
 </tr>
 </table>
 <p>