diff --git a/site/_docs/configuration.md b/site/_docs/configuration.md
index 5fe13ddb..f313656e 100644
--- a/site/_docs/configuration.md
+++ b/site/_docs/configuration.md
@@ -383,7 +383,7 @@ before your site is served.
   </p>
 </div>
 
-## Custom WEBRick Headers
+## Custom WEBrick Headers
 
 You can provide custom headers for your site by adding them to `_config.yml`
 
@@ -397,9 +397,10 @@ webrick:
 
 ### Defaults
 
-We only provide one default and that's a Cache-Control header that disables
-caching in development so that you don't have to fight with Chrome's aggressive
-caching when you are in development mode.
+We provide by default `Content-Type` and `Cache-Control` response headers: one
+dynamic in order to specify the nature of the data being served, the other
+static in order to disable caching so that you don't have to fight with Chrome's
+aggressive caching when you are in development mode.
 
 ## Specifying a Jekyll environment at build time