simplify bingAI installation

en/offlinecache/index.html

@@ -50,8 +50,6 @@
   <p>Offline resources locate in the folder &quot;sitecache&quot;. With the option &quot;use offline resources&quot; enabled, the corresponding files in &quot;sitecache/[domain name]/[full path including filename, the url path part]&quot; are loaded first before reaching the network.</p>
 <h4 id="bingchat-ui">bingChat UI</h4>
 <p><a href="i:0hsitecache/www.bing.com/ai.html:https://gitee.com/jamesfengcao/uweb/raw/master/en/searchurl/bingAI/bing.html">Install bingChat UI ai.html for censored area</a> (<a href="https://www.bing.com/ai.html">bingChat UI</a>)</p>
-<p>The default proxy &quot;mybing2.xn--xyza.top&quot; needs &quot;bing.com&quot; cookies to establish chat. So copy the cookie before accessing the above UI.<br>
-<a href="i:0gdefault.link::cookiecopy_bing::0cchttps://www.bing.com:https://mybing2.xn--xyza.top%0A">Click to install link menu to copy &quot;bing.com&quot; cookies to &quot;mybing2.xn--xyza.top&quot;</a></p>
 <h4 id="serverless-local-sites">Serverless local sites</h4>
 <p><a href="i:01Extract webapp:i:0bsitecache/local/:">Click to install url service that extracts web apps to the folder &quot;sitecache/local/&quot;</a>: support web extensions (.crx for chrome &amp; .xpi for firefox).</p>
 <p>Any folder under &quot;sitecache&quot; can be visited as a local site. Urls with search queries can be dynamically processed by the js/wasm code in the local file.</p>
@@ -66,8 +64,8 @@
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 </div>
-<p>Last Modified: 1 April 2023<br>
-add bingAI UI<br>
+<p>Last Modified: 13 April 2023<br>
+simplify bingAI installation<br>
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