Added Serialize override to the docs#1681

Merged

KyleAMathews merged 2 commits intogatsbyjs:masterfrom chiedo:gatsby-plugin-feed-improved-docs-override-serializer

Aug 1, 2017

+10

Commits on Aug 1, 2017

Added Serialize overide to the docs
Chiedo
committed
Cleaned up indentation
Chiedo
committed