Add element call, donate

src/content/docs/index.mdx

@@ -25,6 +25,12 @@ import { CardGrid, Card } from "@astrojs/starlight/components"
         Matrix is an open-source communications platform, allowing you to chat
         to communities of your choice.
     </Card>
+    <Card title="End to End Encrypted Video Chats" icon="heart">
+        We run an [Element Call](https://github.com/element-hq/element-call)
+        server, where you can log in with your Federated Nexus Matrix account
+        and video chat with end to end encryption. You can chat with anybody
+        with a matrix account.
+    </Card>
     <Card title="A Fast and Free Home for Your Code" icon="seti:git">
         We host a free instance of [Forgejo](https://forgejo.org) at
         [git.federated.nexus](https://git.federated.nexus). Forgejo is a free
@@ -41,4 +47,13 @@ import { CardGrid, Card } from "@astrojs/starlight/components"
         we're open to hosting any useful new software. Let us know in our
         [Matrix room](https://matrix.to/#/#community:federated.nexus)!
     </Card>
+    <Card title="Donate to Federated Nexus" icon="document">
+        Federated Nexus runs off of donations, so if you're enjoying our
+        services please consider donating. Ideally, we take Interac E-Transfer
+        to: henry@henryhiles.com If Interac E-Transfer doesn't work in your
+        country, join the [Matrix
+        room](https://matrix.to/#/#community:federated.nexus) and we'll work
+        something out. A huge thank you to our current sponsors:
+		- @VeryLoud: CAD$100
+    </Card>
 </CardGrid>