gatsby 1.0.0-alpha20

1.0.0-alpha20 RSS Feed plugin, Contentful source plugin, part 1 of new tutorial

on Node.js Yarn

Added

• RSS Feed plugin #1073 @nicholaswyoung
• Contentful source plugin #1084 @mericsson
• MVP part 1 of new community Gatsby tutorial #1107 @KyleAMathews
• Debuggin help when building HTML fails #1109 @KyleAMathews
• Default html.js component #1107 @KyleAMathews
• Can now highlight specific line numbers in markdown code blocks #1107 @KyleAMathews

Changed

• gatsby-config.js is no longer required #1107 @KyleAMathews
• The Gatsby serve-build command is now just serve #1107 @KyleAMathews

Fixed

• Windows builds on Appveyor #1049 @jbolda