Update middleware doc to 0.0.1-1-g47c2128.

index.html

@@ -11,7 +11,7 @@
       <div class="by-name">
       <h2>OCaml package documentation</h2>
       <ol>
-      <li><a href="middleware/index.html">middleware</a> <span class="version">0.0.1</span></li>
+      <li><a href="middleware/index.html">middleware</a> <span class="version">0.0.1-1-g47c2128</span></li>
       </ol>
       </div>
     </main>