Update README.md

Author: gulien

README.md

@@ -38,10 +38,12 @@ Now open the file located at `/etc/hosts` (on MacOS / Linux) and add the followi
 ```
 127.0.0.1   dev.yourproject.com
 ```
+
+**Note:** Make sure that your domain name matches the `APACHE_VIRTUAL_HOST` variable's value.
 
 Good :smiley:? We're now done with the configuration! :metal:
 
-Last but not least, shutdown your local Apache or anything which could use your 80 and 443 ports, and run:
+Last but not least, **shutdown your local Apache or anything which could use your 80 and 443 ports**, and run:
 
 ```
 make kickoff