add npm run start-dev to contributing guidelines

Author: lbochenek

CONTRIBUTING.md

@@ -53,6 +53,9 @@ chances of your issue being dealt with quickly:
 
 You can file new issues by providing the above information at the corresponding repository's issues link: https://github.com/[organization-name]/[repository-name]/issues/new].
 
+### <a name="development"></a> Developing the Module
+If you want to test a change you added to the module, start the sample app with `npm run start-dev`. This will build the module and start the sample app without running the linter.
+
 ### <a name="submit-pr"></a> Submitting a Pull Request (PR)
 Before you submit your Pull Request (PR) consider the following guidelines:
 

README.md

@@ -155,6 +155,9 @@ const sampleReducer = (state = initialState, action) => {
 
 A sample React-based Single Page Application (SPA) that uses this component is available in the [sample folder](sample/README.md). There you'll find a couple implementations that leverage the library, as well as a tutorial of how to set up Azure Active Directory with an Identity Provider.
 
+## Contributing
+See our contribution guildlines [here](CONTRIBUTING.md)
+
 ## Resources
 
 - [React AAD MSAL NPM Module](https://www.npmjs.com/package/react-aad-msal)