Update 2017-03-17-my_first_ruby_gem.markdown
Update 2017-03-17-my_first_ruby_gem.markdown

Editing url links as they are not clickable links on the Learn Blog page
apalski/apalski.github.io,apalski/apalski.github.io,apalski/apalski.github.io,apalski/apalski.github.io