typos
Initial contributing documentation
Added gitbook screenshot
Finalizing words of Contributing chapter
Updated README and SUMMARY to link to contributing
Some typo fixes, link updates.
Merge pull request #44 from kampfschlaefer/typos

Thanks!
wording, sentence structure
Merge pull request #45 from miohtama/contributing

Thanks. Content looks OK, but it would be nice to have it proof read by some English experts.
Merge pull request #49 from BluesFiend/master

Folder structure rearrange
Merge pull request #48 from kerstin/master

Thanks
merging