src/doc/en/developer/git_setup.rst: Link to the SPKG page for the full list of install commands

Author: Matthias Koeppe

src/doc/en/developer/git_setup.rst

@@ -12,11 +12,9 @@ Installing Git
 
 Depending on your platform, use the following to install Git:
 
-Debian / Ubuntu
-    Run ``sudo apt-get install git-core``
-
-Fedora
-    Run ``sudo yum install git-core``
+Linux
+    See :ref:`spkg_git` for the installation command on your
+    Linux distribution.
 
 Windows (WSL)
     We strongly recommend to install the package using the Linux