Update README

samples/MicroserviceDemo/README.md

@@ -7,11 +7,19 @@ First restore mssql database
 $ docker-compose -f docker-compose.yml -f docker-compose.migrations.yml run restore-database
 ```
 
-Build and start containers:
+Build and start containers
 ```sh
 $ docker-compose up -d
 ```
 
+Add this line to your `hosts` file
+```
+127.0.0.1	auth-server
+```
+- Windows: `C:\Windows\System32\Drivers\etc\hosts`
+- Linux & macOS: `/etc/hosts`
+
+
 ### Accessing the Web User Interfaces
 - AuthServer: `http://localhost:64999`
 - PublicWebsite: `http://localhost:53435`