Fix donation link

Author: Maximus5

PortableApps/help.html

@@ -165,7 +165,7 @@ <h2 class="tagline">windows console emulator / local terminal</h2>
 
 <p><a href="http://portableapps.com/donate"><img src="Other/Help/images/donation_button.png" width="110" height="23" border="0" align="top" alt="Make a Donation"></a> - Support PortableApps.com's Hosting and Development</p>
 
-<p><a href="https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=3LV8XTRBK9K4E"><img src="Other/Help/images/donation_button.png" width="110" height="23" border="0" align="top" alt="Make a Donation"></a> - Support ConEmu Development</p>
+<p><a href="https://conemu.github.io/donate.html"><img src="Other/Help/images/donation_button.png" width="110" height="23" border="0" align="top" alt="Make a Donation"></a> - Support ConEmu Development</p>
 
 <p><a href="http://PortableApps.com/">Get more portable apps at PortableApps.com</a></p>