Added entry for Domain Specific Language, and glossary link
Add definition for CLI
Minor grammar changes
Merge branch 'master' of https://github.com/opsschool/curriculum
Expand on Datbases 101, small grammar changes, add MySQL specific examples
Changes and tweaks to 80 width
Merge branch 'Database' of https://github.com/twirrim/curriculum into twirrim-Database
fixing stlye, highlighting and reformatting some paragraphs