Update README.md

Signature - Ward Vandewege (https://github.com/cure)
Merge pull request #29 from cure/master

Signature - Ward Vandewege (https://github.com/cure)
Added signature.
Merge pull request #30 from nathanweeks/patch-1

Added signature.
Update README.md
add me
Merge pull request #32 from cjfields/master

add me
Grammar
Merge branch 'master' of github.com:pjotrp/bioinformatics
hackdna
Signed it.
Merge pull request #33 from etal/patch-1

Signed it.
another signature to the cause
Merge pull request #34 from dswan/patch-1

another signature to the cause
Add my signature
Merge pull request #35 from bow/master

Add another signature.
Signs my name to the manifesto.
Changes spelling to the more common workflow.
Small changes to recommendations to clarify.

Added motivation to the Github and Travis recommendations. Added URL to GUIX.
Merge pull request #36 from hlapp/patch-1

Signs my name to the manifesto.