Update readme

Author: nasdan

readme.md

@@ -1,5 +1,31 @@
 # react-testing-excercise
 
+## Intro
+
+The goal of this excercise is add all necessary tests and testing configuration.
+
+## Excercise
+
+- Install all necessary libs for testing.
+- Add `jest` configuration.
+- Add `debug` configuration.
+- Add `pods/recipes/recipes.mappers` tests.
+- Add `common/components` tests.
+- Add `pods/recipes/hooks` tests.
+- Add `pods/recipes/store` tests (actions, reducers, selectors, sagas).
+- Add `pods/recipes/recipes.container` tests.
+- Add `pods/recipes/selectors` tests.
+
+## Optional
+
+- Add `coverage` configuration.
+- Add `travis-ci` or `circle-ci` configuration.
+- Add `common/mappers/collection` tests.
+- Add `common/helpers/flat-items` tests.
+- Add `pods/recipes/recipes.business` tests.
+
+## Important
+
 - When configure `jest.json` file, add `alias` configuration using:
 
 ```javascript