Update setup.md

Author: DamienIrving

setup.md

@@ -31,16 +31,21 @@ you will need access to the following:
 
 If you don't already have these installed,
 please follow [The Carpentries software installation instructions](https://carpentries.github.io/workshop-template/#setup).
+You do not need to install R, SQL or any of the additional software listed at that site.
 
-(If you have any trouble,
-The Carpentries maintain a list of common issues as a reference for instructors on the
-[Configuration Problems and Solutions wiki page](https://github.com/carpentries/workshop-template/wiki/Configuration-Problems-and-Solutions).)
+> ## Troubeshooting
+>
+> If you have any trouble with software installation,
+> The Carpentries maintain a list of common issues as a reference for instructors on the
+> [Configuration Problems and Solutions wiki page](https://github.com/carpentries/workshop-template/wiki/Configuration-Problems-and-Solutions).
+>
+{: .callout}
 
 Depending on time and wifi constraints,
 your workshop instructor may also ask that you install the python packages introduced in the
 [first lesson](https://carpentrieslab.github.io/python-aos-lesson/01-conda/index.html)
 ahead of time.
-Your instructor will specify whether to do this following the "default" approach
+They will specify whether to do this following the "default" approach
 or "conda environments" approach (see below for instructions).
 
 > ## Installation of python packages: Linux & Mac (default)