Updates documentation

README.md

@@ -1,2 +1,19 @@
 # CloudNet-PlaceholderAPI
 A few placeholders for CloudNet that works with CloudNet 3.3.x
+
+# Usage
+`%cloudnet_total_online%`
+
+# Available Placeholders
+
+`%cloudnet_service_name` - Return the service name
+`%cloudnet_service_static` - Returns a true or false
+`%cloudnet_service_autodelete` - Return true or false
+`%cloudnet_service_port` - Returns the port of the current service
+`%cloudnet_service_host` - Returns the host of the current service
+`%cloudnet_service_address` - Return the full address of the service in the form of `<ip>:<port>`
+`%cloudnet_task_name` - Return the name of the current task
+`%cloudnet_total_online` - Returns the count of players online network wide.
+
+# Suggestions
+Feel free to give me your suggestions on placeholders.