Update README.md

Mini cleanup
Update README.md

typo
Change directory before executing a command.
Added double quotes surrounding the path.
Merge pull request #51 from MarcCote/fix_cwd

FIX: Change directory before executing a command.
Added max_length param to the jobname.

Fixes #53
Fixed issue #54
Merge pull request #56 from MarcCote/fix_empty_command

Fixed issue #54
Update guillimin.json

Had wrong module in k20 queue for cuda.
Added support for helios gpu cluster.
Silly cannot test error.
...
Test
Fixed tests and job_generator
Merge pull request #60 from mgermain/helios_support

Added support for helios gpu cluster.
Fix bug #5 in command parsing.

Closes #5
Forget to uncomment stuff.
Another typo

Should really find a way to run those unit test on windows.
Added some tests.
Use regex to unfold arguments.