[IMP] installer: Remove duplicated line from readme

README.md

@@ -24,7 +24,6 @@ There are a few things you can configure, this is the most used list:<br/>
 ```OE_SUPERADMIN``` is the master password for this Odoo installation.<br/>
 ```INSTALL_NGINX``` is set to ```False``` by default. Set this to ```True``` if you want to install Nginx.<br/>
 ```WEBSITE_NAME``` Set the website name here for nginx configuration<br/>
-```WEBSITE_NAME``` Set the website name here for nginx configuration<br/>
 ```ENABLE_SSL``` Set this to ```True``` to install [certbot](https://github.com/certbot/certbot) and configure nginx with https using a free Let's Encrypted certificate<br/>
 ```ADMIN_EMAIL``` Email is needed to register for Let's Encrypt registration. Replace the default placeholder with an email of your organisation.<br/>
 ```INSTALL_NGINX``` and ```ENABLE_SSL``` must be set to ```True``` and the placeholder in ```ADMIN_EMAIL``` must be replaced with a valid email address for certbot installation<br/>