Add support for nginx webserver.

conf/install_nextcloud.conf.sample

@@ -28,6 +28,17 @@
 #WEB_DIRS_ROOT="/var/www"
 
 
+# - WEBSERVER_SOFTWARE
+# -
+# - Installed Webserver Software. Possoble values are:
+# -    - apache
+# -    - nginx
+# -
+# - Default: nginx
+# -
+#WEBSERVER_SOFTWARE="nginx"
+
+
 # - Webservers user
 # -
 # - The script wil determin the webservers user, so you don't need to