added list of files with description
improv doc
add missing dashes
add README for limits
add README for limits II
Merge pull request #11 from benediktahrens/documentation

Documentation
test shell syntax
put some infos in toplevel README, not more than a start
Merge pull request #12 from benediktahrens/documentation

Toplevel documentation
bulleted sublists in a readme
Merge pull request #14 from DanGrayson/pull-8

bulleted sublists in a readme
update README to reflect repository name change