Broken links throughout the repo.

[ecsalomon]

root README

• https://github.com/dssg/hitchhikers-guide/blob/master/dssg-manual
• https://github.com/dssg/hitchhikers-guide/blob/master/curriculum

sources/curriculum/programming_best_practices/reproducible-software/README.md

• https://github.com/dssg/hitchhikers-guide/tree/master/tech-tutorials/reproducible_ETL
• https://github.com/dssg/hitchhikers-guide/tree/master/tech-tutorials/git-and-github
• https://github.com/dssg/hitchhikers-guide/tree/master/tech-tutorials/test-test-test
• https://github.com/dssg/hitchhikers-guide/tree/master/tech-tutorials/legible-good-code

Probably others....

[TSSlade]

[x] Fixed dssg-manual.
[x] Fixed curriculum.
[x] Links formerly to 4_programming_best_practices redirected to the current structure, programming_best_practices.
[x] reproducible_ETL had been relocated from tech-tutorials to 1_getting_and_keeping_data
[x] git-and-github had been relocated from tech-tutorials to setup.
[x] test-test-test had been relocated from tech-tutorials to programming-best-practices.
[x] legible-good-code had been relocated from tech-tutorials to programming-best-practices.