Release ecto docs
Update Ecto docs
Fix typo in Getting Started guide
Merge pull request #151 from Irio/master

Fix typo in Getting Started guide
Show type of expression using "?" operator before use it
Fix typo in Getting Started guide
Use the pattern to keep module names between `` chars in Getting Started
Fix typo in Getting Started guide
Merge pull request #153 from Irio/typos

Typos in second section of Getting Started guide
Merge pull request #152 from Irio/master

Show type of expression using "?" operator before use it
Fix indication to inexistant `is_record` macro
Merge pull request #154 from Irio/master

Fix indication to inexistant `is_record` macro
Update undefined function error message in Getting Started Guide
Keep the pattern to place module names between `` chars
Reflect IO.puts argument to be an io_list to GS Guide

This requirement in IO.puts can be see in
10a795ff44129b8ac1f290b1a44c6e46cbf2bce3
Merge pull request #155 from Irio/small-improvements

Small improvements in texts of Getting Started Guide
Talk about configuring applications in Mix chapters
Change example of records to reflect their immutability
Merge pull request #158 from Irio/records-revision

Change example of records to reflect their immutability
Use iex output when showing errors