Trac #88: API to specify the session identifier used by the agent.
diff --git a/org.jacoco.doc/docroot/doc/agent.html b/org.jacoco.doc/docroot/doc/agent.html
index 56131d6..2a604ce 100644
--- a/org.jacoco.doc/docroot/doc/agent.html
+++ b/org.jacoco.doc/docroot/doc/agent.html
@@ -100,8 +100,17 @@
       <td><code>sun.reflect.DelegatingClassLoader</code></td>

     </tr>

     <tr>

+      <td><code>sessionid</code></td>

+      <td>A session identifier that is written with the execution data. Without

+          this parameter a random identifier is created by the agent.

+      </td>

+      <td><i>auto-generated</i></td>

+    </tr>  

+    <tr>

       <td><code>dumponexit</code></td>

-      <td>If set to <code>true</code> coverage data will be written on VM shutdown</td>

+      <td>If set to <code>true</code> coverage data will be written on VM

+          shutdown.

+      </td>

       <td><code>true</code></td>

     </tr>

   </tbody>