Updated the about page:

1. improved picture showing the shell
2. updated description.

pkg/server/ui/about.templ

@@ -52,9 +52,11 @@ templ About() {
            rendez-vous id and setup a bi-directional connection. After this, Converge simply copies data between
            client and agent. </li>
           <li>(4): the agent runs an embedded SSH server and incoming connections to the agent are handed over to
-             that server. That server in turn spawns a shell (bash, cmd.exe, powershell.exe) and connects it to the
-             remote SSH session. At that momenmt an end-to-end SSH session is established and the user can perform interactive
-             commands. Here any shell program can be used such as bash, command prompt, or powershell. </li>
+             that server. At this moment an end-to-end SSH session is established.  </li>
+          <li>(5): The agent spawns a shell that receives input from the user. Output from the shell is communicated
+          back over the SSH session. The shell can be any shell (bash, cmd.exe, powershell.exe) or in fact any process.
+          At this point, the user is connected to a remote shell running in the continuous integration job.
+          </li>
       </ul>
 
       <p>There are a few special situations: