add tab for examples on bank billet
style for tabs
add tav examples on customer page
improving margin of tab content
add tab examples on authenticated user page
add tab examples on index page
add tab examples on access token page
add tab examples to oauth2 page
ruby examples on billets reference
ruby examples on customers reference
ruby example on authenticated user reference
add ruby example on access token reference
Added oauth2 examples
remove ruby example on request limit session on introduction
Merge pull request #2 from BoletoSimples/mc-ruby-examples

Mc ruby examples