docs: add a few more test commands to CONTRIBUTING.md (#2871)

CONTRIBUTING.md

@@ -24,97 +24,102 @@ $ yarn bootstrap
 ### Run locally
 
 ```sh
-$ yarn start
+yarn start
 ```
 
 ## Available scripts
 
-### `bootstrap`
+### bootstrap
 
 Bootstraps the monorepo.
 
-#### Usage
-
 ```sh
-$ yarn bootstrap
+yarn bootstrap
 ```
 
-### `watch`
+### watch
 
 Watches all CMS packages and transpiles them on change.
 
-#### Usage
-
 ```sh
-$ yarn watch
+yarn watch
 ```
-
-### `start`
+### start
 
 Starts the development server. This task runs both the `bootstrap` and `watch` scripts.
 
-#### Usage
-
 ```sh
-$ yarn start
+yarn start
 ```
 
-### `clean`
+### clean
 
 Removes all of the CMS package `dist` directories.
 
-#### Usage
-
 ```sh
 yarn clean
 ```
 
-### `reset`
+### reset
 
 Runs the `clean` script and removes all the `node_modules` from the CMS packages.
 
-#### Usage
-
 ```sh
 yarn reset
 ```
 
-### `build`
+### build
 
 Runs the `clean` script and builds the CMS packages.
 
-#### Usage
-
 ```sh
 yarn build
 ```
 
-### `build-preview`
+### build-preview
 
 Runs the `build` and `build-preview` scripts in each package and serves the resulting build locally.
 
-#### Usage
-
 ```sh
 yarn build-preview
 ```
 
-### `test`
+### test
 
-Runs all the CMS package tests.
-
-#### Usage
+Runs linting and Jest tests.
 
 ```sh
 yarn test
 ```
 
-### `format`
+### test:all
+
+Runs linting, Jest, and Cypress tests.
+
+```sh
+yarn test:all
+```
+
+### test:e2e
+
+Runs Cypress e2e tests.
+
+```sh
+yarn test:e2e
+```
+
+### test:e2e:dev
+
+Runs Cypress e2e tests on watch mode with an open instance of Chrome.
+
+```sh
+yarn test:e2e:dev
+```
+
+### format
 
 Formats code and docs according to our style guidelines.
 
-#### Usage
-
 ```sh
 yarn format
 ```