diff --git a/docs/config.md b/docs/config.md
index bbe263cec..de3816ba9 100644
--- a/docs/config.md
+++ b/docs/config.md
@@ -1,6 +1,6 @@
 # Configuration
 
-GitBook allows you to customize your book using a flexible configuration. These options are specified in a `book.json` file.
+GitBook allows you to customize your book using a flexible configuration. These options are specified in a `book.json` file. For authors, not used to write JSON, you can validate the syntax using [jsonlint](http://jsonlint.com).
 
 ### Configuration Settings