more instruction work

docs/_source/installation.rst

@@ -14,6 +14,10 @@ The example code below is from a Linux system using the Bash shell. The pipeline
 (running Linux). If you are using Windows, you will need to run the initial directory creation and Git commands using
 Windows equivalents.
 
+**THESE INSTRUCTIONS ASSUME YOU HAVE ADMIN PRIVILEGES ON THE COMPUTER YOU ARE USING, AND ARE FAMILIAR WITH DOCKER**, If
+you are not familiar with DOcker, you shoiuld be able to follow the instructions, but may run into difficulties you go
+off-track.
+
 1: Create installation dirs:
 ----------------------------
 If you are planning to have a dedicated user/group for this pipeline, make sure you run these commands using that user.