added in some typical workflows in to the introduction
introduction: updated journal information
Missing comma after e.g.
Merge pull request #140 from ehsteve/schriste

Fix for issue #110
Merge pull request #141 from ayshih/eg

Inserted missing comma after e.g.
Merge pull request #139 from wafels/master

added in some typical workflows in to the introduction
fix for issue #110