Update README.md
first layout
solution to hide later
first readme
small changes on the readme
modifying API link in doc
getting rid of the solution in the boilerplate :)
reformated specs in rspec for 04 hashes symbols fixes #1
Merge pull request #13 from lewagon/minitest_to_rspec

reformated specs in rspec for 04 hashes symbols fixes #1
Fix specs again
fix spec
Fix spec
Forgot 2 must minitest syntax
Fix to_be_nil
First optional exercise for active record basics day
Add second exercise with dirty database
Need to set primary key as well
Reading material
Markdown links
Added pictures for Rails#1 challenges