docs: add more about matrix

content/tutorials/matrix.md

@@ -2,4 +2,11 @@
 title = 'What is Matrix'
 +++
 
-Matrix is an open federated instant messaging protocol originally created in 2014.
+Matrix is an open federated instant messaging protocol originally created in 2014.  
+This means that just like with e-mail, anybody on a Matrix server can talk to any user on another server.  
+As Matrix is an open protocol, anybody is welcome to make clients, bots, servers and any software really.  
+Most software in the ecosystem is Open-Source with some rare exceptions.
+
+You can learn more about Matrix on [their official website](https://matrix.org).
+
+Ready to do the jump? Check out [how to get started]({{< ref "tutorials/getstarted" >}})!