Added discord as alternative

_layouts/default.html

@@ -28,7 +28,8 @@
                 <a href="https://www.meetup.com/Elixir-Berlin/">The Meetup</a>
                 <a href="https://github.com/elixir-berlin/planning/issues/new?template=talk.yml">Apply as Speaker</a>
                 <a href="https://github.com/elixir-berlin/elixir-companies-berlin">Company Register</a>
-                <a href="https://join.slack.com/t/elixir-lang/shared_invite/zt-29w4dnkie-VkuKAAiVHSMmKakxrVA27w">&#x23;Berlin</a>
+                <a href="https://join.slack.com/t/elixir-lang/shared_invite/zt-29w4dnkie-VkuKAAiVHSMmKakxrVA27w">Slack (&#x23;Berlin)</a>
+                <a href="https://discord.com/invite/WaKTXHD">Discord</a>
               </nav>
             </header>
           </div>
@@ -68,7 +69,8 @@ <h1 class="site-name">Elixir Berlin</h1>
         <div class="coc">
           💜 Ethos: Read our <a href="https://github.com/elixir-berlin/planning/blob/main/Code-of-Conduct.md">Code of Conduct</a>
           <br/>
-          💬 Talk: <a href="https://join.slack.com/t/elixir-lang/shared_invite/zt-1f13hz7mb-N4KGjF523ONLCcHfb8jYgA">Join &#x23;Berlin on the Elixir Slack</a>
+          💬 Talk: <a href="https://join.slack.com/t/elixir-lang/shared_invite/zt-29w4dnkie-VkuKAAiVHSMmKakxrVA27w">Join &#x23;Berlin on Elixir-Slack</a>
+          💬 Talk: <a href="https://discord.com/invite/WaKTXHD">Join Elixir Berlin on Discord</a>
         </div>
       </footer>
     </div>