diff --git a/expensereport-javascript/README.md b/expensereport-javascript/README.md
index 40c20c3e..9c7f7f14 100644
--- a/expensereport-javascript/README.md
+++ b/expensereport-javascript/README.md
@@ -11,3 +11,5 @@ Kata for Coding Dojos.
 - when using `nvm`: run `nvm install`
 - install dependencies: `npm install`
 - run tests: `npm test` or `make test`
+- run tests in watch mode: `npm run test:watch`
+- reformat code with Prettier: `npm run prettier`