updating the discord server and github url (modmail-dev#72)

* updating the discord server and github url

was still pointing to the dead discord server. 

Signed-off-by: EP <[email protected]>

* Use the same inv link as the modmail repo

---------

Signed-off-by: EP <[email protected]>
Co-authored-by: Taku <[email protected]>

Author: Sasiko

templates/index.html

@@ -9,9 +9,9 @@ <h1 class="animated jackInTheBox header" id='dashbots'>Logviewer</h1>
         <h5 class="header col s12 light grey-text">This site is used to display Modmail log entries.</h5>
         <br>
         <div class="row center">
-            <a href="https://discord.gg/F34cRU8" class="btn waves-effect my-button">Support server</a>
-            <a href="https://github.com/kyb3r/modmail" class="btn waves-effect my-button">Github</a>
-            <a href="https://github.com/kyb3r/modmail/wiki" class="btn waves-effect my-button">Wiki</a>
+            <a href="https://discord.gg/cnUpwrnpYb" class="btn waves-effect my-button">Support server</a>
+            <a href="https://github.com/modmail-dev/modmail" class="btn waves-effect my-button">Github</a>
+            <a href="https://github.com/modmail-dev/modmail/wiki" class="btn waves-effect my-button">Wiki</a>
             <a href="https://patreon.com/kyber" class="btn waves-effect my-button">Patreon</a>
             <br>
         </div>