We teach more than writing and maintaining code

This addresses @lexnederbragt comment
on @sclayton29 suggestion to change language.

index.html

@@ -62,8 +62,9 @@ and the administrator will contact you if we need any extra information.</h4>
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 <p>
   <a href="{{site.swc_site}}">Software Carpentry</a>
-  teaches researchers the basics of writing and maintaining code
-  to help them get more done in less time with less pain.
+  teaches researchers how to get their work done
+  in less time and with less pain
+  by using basic research computing skills.
   This hands-on workshop will cover basic concepts and tools,
   including program design, version control, data management,
   and task automation.