Add note on PropTypes

gatsbyjs · Feb 13, 2018 · 2bbee86 · 2bbee86
1 parent 00c4ca6
commit 2bbee86
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/packages/gatsby-transformer-react-docgen/README.md b/packages/gatsby-transformer-react-docgen/README.md
@@ -24,6 +24,8 @@ You'll also need to include a source-plugin, such as
 [gatsby-source-filesystem](https://www.npmjs.com/package/gatsby-source-filesystem),
 so that the transformer has access to source data.
 
+Note that at least one of your React Components must have PropTypes defined.
+
 ## How to query
 
 An example _graphql_ query to get nodes: