Update 2000-01-01-your-own-course.markdown

troubleshooting jekyll
Updated course.yml to fix a missing whitespace

Thanks Dirk for the input!
Added some basic troubleshooting information

First time I forked I got some errors, so I've added some troubleshooting information to help future peers.
Merge pull request #31 from elsatch/gh-pages

Fixed typo and additional troubleshooting info