Update README.md

README.md

 # webserver-config
 
-provides means for webserver configuration to accomodate subdomains
\ No newline at end of file
+provides means for webserver configuration to accomodate subdomains
+
+## Usage:
+
+create a new branch from master and add the requested subdomain in the form:
+`<subdomain>§<website>`
+
+Afterwards, request the merge using the mergerequest tool from gitlab.
+
+The Administrator will review your changes and approve them. After merging, your subdomain will be available the next day.