newbing support with more explanation

en/topposts/index.xml

@@ -13,7 +13,7 @@
       
       <guid>/en/search/</guid>
       <description>Clicking the following links to install search engines to uweb&#39;s home screen.
-bingUS: bypass censorship to access bingchat (long press the &amp;quot;PC&amp;quot; button to use &amp;quot;edge&amp;quot; as UA)
+bingUS: bypass censorship to access bingchat (long press the &amp;quot;PC&amp;quot; button to use &amp;quot;edge&amp;quot; as UA. The account region setting is recommended to be &amp;quot;US&amp;quot;)
 Recommended engines (click or append any of the following to the file &amp;quot;home5.search&amp;quot;)：
 Engines:i:40%s_00
 bing image:http://bing.com/images/search?q=
@@ -31,16 +31,7 @@ twitter:https://twitter.com/search?q=
 Facebook:https://www.facebook.com/search/str/%s/keywords_search
 Instagram:https://www.instagram.com/explore/tags/%s/
 social-search:https://www.social-searcher.com/social-buzz/?q5=
-reddit:http://reddit.com/search?q=
-boardreader:https://boardreader.com/s/%s.html
-bingvideo:https://www.bing.com/videos/search?q=
-vsearch:https://www.vsearch.me/s?q=
-groups:http://groups.google.com/groups/search?q=
-wolfram:https://www.wolframalpha.com/input/?i=
-fxsolver:https://www.fxsolver.com/browse/?q=
-book_google:https://google.com/search?q=%22parent+directory%22+pdf+OR+epub+OR+DjVU+OR+xps+%22%s%22+-html+-htm+-shtml+-phtml+-php+-buy+-aspx+-jsp+-asp+-cgi+-pdf+-ftp+-unknownsecret&amp;amp;num=100&amp;amp;filter=0
-annas-archive:https://annas-archive.org/search?q=
-libgen:http://gen.lib.rus.ec/search.php?req=</description>
+reddit:http://reddit.com/search?q=</description>
     </item>
     
     <item>