minor fix to proxy.html

Author: bsorav

dev/proxy.html

@@ -10,7 +10,7 @@ <h2>Accessing internet on server machine</h2>
 <p>As the server is shared by many users, we advise that you remain logged-in into proxy server only while you need internet connection and disconnect as soon as possible.</p>
 <h3>HOWTO login into proxy server without GUI using <code>iitd-login.py</code> script</h3>
 <ol>
-<li>Setup environment variables for your proxy server.  For e.g., for PhD students <code>http_proxy</code> (and friends) need to be set to <code>http://proxy61.iitd.ac.in:3128</code>.
+<li>Setup environment variables for your proxy server.  For e.g., for PhD students <code>http_proxy</code> (and friends) need to be set to <code>http://proxy61.iitd.ac.in:3128</code>. For <code>cstaff</code> members, the server is <code>http://proxy21.iitd.ac.in:3128</code>.
 <ul>
 <li>The exhaustive list of variables is: <code>http_proxy</code>, <code>https_proxy</code>, <code>HTTP_PROXY</code>, <code>HTTPS_PROXY</code>.</li>
 </ul>