N15: Proton 5.13-1 (#335)

* Section on Proton 5.13-1

* Address feedback

* Fix additional lint checks

Author: PatrickHoward

content/posts/newsletter-015/index.md

@@ -359,6 +359,22 @@ Join the [Discord server](https://discord.com/invite/ajour) and say hi.
 [Ajour]: https://getajour.com
 [Iced]: https://github.com/hecrj/iced
 
+### [Proton][Proton-Github] 5.13-1
+
+In addition to adding Linux Support for more Windows-exclusive games,
+Valve Software's wine-based translation layer for Linux: Proton now
+includes Rust as part of its build system.
+[Media Converter][Proton-Media-Converter-Github], is a Proton module
+written in Rust as a gstreamer plugin to convert certain media encodings
+from one format to another.
+
+Doucmentation for building Proton is available on [Github][Proton-Github].
+Further documentation on Media Converter and its source code is available
+on the module's [repository][Proton-Media-Converter-Github]
+
+[Proton-Github]: https://github.com/ValveSoftware/Proton
+[Proton-Media-Converter-Github]: https://github.com/ValveSoftware/Proton/tree/proton_5.13/media-converter
+
 ## Popular Workgroup Issues in Github
 
 <!-- Up to 10 links to interesting issues -->