[documentation] Add third-party packaging to documentation (#443)

README.md

@@ -28,6 +28,7 @@ Documentation is at [docs.gotosocial.org](https://docs.gotosocial.org). You can
   - [Backend-first design](#backend-first-design)
 - [Wishlist](#wishlist)
 - [Getting Started](#getting-started)
+- [Third-Party Packaging](#third-party-packaging)
 - [Contributing](#contributing)
 - [Contact](#contact)
 - [Credits](#credits)
@@ -156,6 +157,14 @@ These cool things will be implemented if time allows (because we really want the
 
 All docs for installation and configuration are hosted at [docs.gotosocial.org](https://docs.gotosocial.org).
 
+## Third-Party Packaging
+
+Thank you so much to the cool people who have put time and energy into packaging GoToSocial! Known third-party packaging projects are listed below:
+
+- [YunoHost GoToSocial Packaging](https://github.com/YunoHost-Apps/gotosocial_ynh) by [OniriCorpe](https://github.com/OniriCorpe).
+
+These packages are not maintained by GoToSocial, so please direct questions and issues to the repository maintainers (and donate to them!).
+
 ## Contributing
 
 You wanna contribute to GtS? Great! ❤️❤️❤️ Check out the issues page to see if there's anything you wanna jump in on, and read the [CONTRIBUTING.md](./CONTRIBUTING.md) file for guidelines and setting up your dev environment.

docs/installation_guide/third_party.md

@@ -0,0 +1,7 @@
+# Third-Party Packaging
+
+Several awesome people have put time and energy into packaging GoToSocial for third-party ecosystems. These projects are listed below:
+
+- [YunoHost GoToSocial Packaging](https://github.com/YunoHost-Apps/gotosocial_ynh) by [OniriCorpe](https://github.com/OniriCorpe).
+
+These packages are not maintained by GoToSocial, so please direct questions and issues to the repository maintainers (and donate to them!).

mkdocs.yml

@@ -18,6 +18,7 @@ nav:
     - "installation_guide/binary.md"
     - "installation_guide/docker.md"
     - "installation_guide/nginx.md"
+    - "installation_guide/third_party.md"
   - "Configuration":
     - "configuration/index.md"
     - "configuration/general.md"