update README

wxsms · Dec 15, 2017 · 7774559 · 7774559
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commit 7774559
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diff --git a/README.md b/README.md
@@ -54,6 +54,11 @@ module.exports = {
 }
 ```
 
+Note that to get code highlighting to work, you need to:
+
+* include one of the highlight.js css files into your project, for example: `highlight.js/styles/github-gist.css`.
+* specify a lang in code block. ref: [creating and highlighting code blocks](https://help.github.com/articles/creating-and-highlighting-code-blocks/).
+
 ### With Options
 
 ```javascript