Add link to matrix chat (#448)

Author: jgollenz

README.md

@@ -5,7 +5,7 @@
 
 # nvim-orgmode
 
-  <a href="/LICENSE">![License](https://img.shields.io/badge/license-MIT-brightgreen?style=flat-square)</a><a href="https://ko-fi.com/kristijanhusak"> ![Kofi](https://img.shields.io/badge/support-kofi-00b9fe?style=flat-square&logo=kofi)</a><a> ![Chat](https://img.shields.io/matrix/neovim-orgmode:matrix.org?logo=matrix&server_fqdn=matrix.org&style=flat-square)</a>
+  <a href="/LICENSE">![License](https://img.shields.io/badge/license-MIT-brightgreen?style=flat-square)</a><a href="https://ko-fi.com/kristijanhusak"> ![Kofi](https://img.shields.io/badge/support-kofi-00b9fe?style=flat-square&logo=kofi)</a><a href="https://matrix.to/#/#neovim-orgmode:matrix.org"> ![Chat](https://img.shields.io/matrix/neovim-orgmode:matrix.org?logo=matrix&server_fqdn=matrix.org&style=flat-square)</a>
 
 
   Orgmode clone written in Lua for Neovim 0.7+