update install warning that container tech needs to be installed

vsoch · vsoch · commit 324d1ecdac4e · 2021-06-05T13:30:19.000-06:00
Signed-off-by: vsoch &lt;vsoch@users.noreply.github.com&gt;
diff --git a/docs/getting_started/installation.rst b/docs/getting_started/installation.rst
@@ -87,7 +87,7 @@ and interacting with your modules.
 
 .. warning::
 
-    As Singularity is the main container tool, you must have Singularity installed in your $PATH
+    You must have your container technology of choice installed and on your $PATH
     to install container modules.
      
 
