Update installation.rst

mgkimsal · weaverryan · commit c876100c3787 · 2016-09-25T13:54:01.000-04:00
Reminder note to view specific documentation version when installing specific version.  Reference to installing LTS means example commands later on down in this same page will not work.
diff --git a/setup.rst b/setup.rst
@@ -89,6 +89,9 @@ optional second argument of the ``new`` command:
     # use the most recent 'lts' version (Long Term Support version)
     $ symfony new my_project_name lts
 
+Each version has its *own* documentation, which you can select on any documentation
+page.
+
 .. note::
 
     Read the :doc:`Symfony Release process </contributing/community/releases>`
