Rewrite code samples README

Author: kengaderdus

1-Authentication/5-sign-in-express/README.md

@@ -384,7 +384,7 @@ There is one web app in this sample. To deploy it to **Azure App Services**, you
 1. Update your **Redirect URIs** to to match the site URL of your Azure deployment such as `https://ciam-msal-node-webapp.azurewebsites.net/auth/redirect`.
 1. Select **Configure** to save your changes.
 
-> :warning: If your app use *in-memory* storage, **Azure App Services** will spin down your web site if it is inactive. This action empties any records in the memory. In addition, if you increase the instance count of your website, Azure Service distributes the requests among the instances. Therefore, rour app's records won't be the same on each instance.
+> :warning: If your app use *in-memory* storage, **Azure App Services** will spin down your web site if it is inactive. This action empties any records in the memory. In addition, if you increase the instance count of your website, Azure Service distributes the requests among the instances. Therefore, your app's records won't be the same on each instance.
 </details>
 
 ## Contributing