README: nginx: Reordered subroles to be alphabetical correct

README.md

@@ -39,9 +39,9 @@ Following roles have been defined for making a server configuration easy:
 - **nginx** defines roles to set up virtual servers, certificates will be requested by default
   - **application** installs and configures the main requirements
   - **forward** sets up a forwarding from one domain to another
+  - **php** sets up a PHP webpage with files at the given directory
   - **php-fpm** installs php-fpm and requirements
   - **php-pool** sets up a php-fpm pool running its own user account
-  - **php** sets up a PHP webpage with files at the given directory
   - **proxy** sets up a reverse proxy to a local port / proxy
   - **server** sets up a nginx server with custom directives
   - **static** sets up a static web root