Doc about auto completion.

idea-plug-in/index.html

@@ -89,6 +89,7 @@
     The Kobalt IDEA plug-in offers the following features:
     <ul>
         <li>Synchronization of build files.</li>
+        <li>Automatic completion of <code>Build.kt</code></li>
     </ul>
 </p>
 <h3 class="section" indent="1" id="sync-build-file">Synchronization of build files</h3>
@@ -145,6 +146,31 @@ dependencies {
               <img src="../pics/structure-4.png" class="img-rounded"/>
           </p>
 
+<h3 class="section" indent="1" id="autocompletion">Auto completion of Build.kt</h3>
+          <p>
+              The plug-in will automatically turn on auto-completion of your <code>Build.kt</code>
+              file if it's located in the <code>kobalt/src</code> directory. Once this is
+              enabled, you can use everything you use on Kotlin files (auto completion, jump
+              to symbols, even refactorings).
+          </p>
+          <p>
+              The plug-in also understands the <code>plugins()</code> directive:
+          </p>
+          <ul>
+              <li>Add a plug-in to your build file:
+<pre class="brush:java">
+val plugins = plugins("com.beust.kobalt:kobalt-line-count:0.17")</pre>
+              </li>
+              <li>Sync your build file, as explained in the previous section.</li>
+              <li>You can now import the new symbols and use the new configuration:
+              <pre class="brush:java">
+import com.beust.kobalt.plugin.linecount.lineCount
+val lc = lineCount {
+    suffix = "**Plugin.kt"
+}</pre>
+              </li>
+          </ul>
+
   <h2 class="section">Source code and bug reports</h2>
   <p>
       The source code <a href="http://github.com/cbeust/kobalt-intellij-plugin">can be found on github</a>.
@@ -154,7 +180,7 @@ dependencies {
   <p align="center">
       <img src="../pics/show-log.png" class="img-rounded"/>
   </p>
-      </div>
+</div>
 
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       <div class="col-md-3" id="table-of-contents">