Update README.md

luijar · Aug 5, 2017 · 05b96ab · 05b96ab
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Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/README.md b/README.md
@@ -35,6 +35,7 @@ $ npm run ch[01-08]
 ```
 ### Jest
 Additionally, you may also run unit tests using the [Jest](https://facebook.github.io/jest/) test runner.
+Disclaimer: This is not part of the book, but an extra feature courtesy of the JS community :-) 
 
 To run all tests:
 
@@ -58,4 +59,4 @@ And for code coverage:
 
 ```bash
 $ npm run cover
-```
+```