Updated Working on GNU Linux (markdown)

Working-on-GNU-Linux.md

@@ -104,6 +104,26 @@ make USE_EXTERNAL_GLFW=TRUE
 cmake -DUSE_EXTERNAL_GLFW=ON
 ```
 
+## Install on GNU Linux
+
+If you are a packager for a Distribution not listed here, please take the time and create a raylib package.
+
+### openSUSE
+openSUSE has raylib in the official repository. Install it via:
+
+```
+zypper in raylib-devel
+```
+
+Users of older openSUSE versions will have to add the [devel:libraries:c_c++ devel project](https://build.opensuse.org/project/show/devel:libraries:c_c++).
+
+Add the repo, refresh sources and install raylib:
+```
+zypper ar -f http://download.opensuse.org/repositories/devel:/libraries:/c_c++/openSUSE_Factory/devel:libraries:c_c++.repo
+zypper ref
+zypper in raylib-devel
+```
+
 **If you have any doubt, [just let me know][raysan5].**
 
 [raysan5]: mailto:ray@raylib.com "Ramon Santamaria - Ray San"