Adding astyle options file and contribution formatting section.

CONTRIBUTING.md

@@ -61,3 +61,10 @@ Branch contribution_guide set up to track remote branch contribution_guide from
 ```
 The remote server will return a quick link for creating a merge request if one hasn't already been created for this branch.
 
+
+# Formatting
+The use of the utility [astyle](http://astyle.sourceforge.net/) makes for a quick processing of the desired format.
+From the root directory running the following command will load default options for style formatting.
+```
+astyle --options=options.astyle *.cc *.hh
+```

options.astyle

+--suffix=none
+--lineend=linux
+--indent=spaces=4
+--convert-tabs
+--style=bsd
+--recursive
+--exclude=testframework
+--exclude=googletest
+--exclude=TriBITS