feat: TTA-180 updating README.md

Author: Rodrigo Lins

README.md

@@ -59,6 +59,13 @@ In project path, open your favourite command line and run `npm install` in order
 
 # Prepare your environment
 
+### **Local DNS Configuration**
+
+To test the application in a local environment please modify you `/etc/hosts` on Linux/Mac. In Windows `C:\Windows\System32\Drivers\etc\hosts` and add this line:
+```text
+127.0.0.1 timetracker-dev.ioet.com
+```
+
 ### Set environment variables
 **1**. Using GPG create your key by running this command in your favourite command shell: `gpg --generate-key`.