Add link to packages in openSUSE build service (#14439)

* Link to OpenSUSE build service

docs/content/doc/installation/from-package.en-us.md

@@ -43,6 +43,11 @@ Arch Linux ARM provides packages for [aarch64](https://archlinuxarm.org/packages
 pacman -S gitea
 ```
 
+## SUSE and openSUSE
+
+OpenSUSE build service provides packages for [openSUSE and SLE](https://software.opensuse.org/download/package?package=gitea&project=devel%3Atools%3Ascm) 
+in the Development Software Configuration Management Repository
+
 ## Windows
 
 There is a [Gitea](https://chocolatey.org/packages/gitea) package for Windows by [Chocolatey](https://chocolatey.org/).