Implemented PlaceholderAPI into Join and Leve methods.

Updated the plugin with a lot more features, updated to version 1.19.3.
Created a better documentation of my plugin's features.

I have implemented an to/do idea, and some ideas I haven't posted on there.

I have added:
MOTD on the server list - configurable in the config file.
Fly command, on and off messages configurable in the config file
SetSpawn and Spawn commands the spawn point will be saved inside the config file.
SetHome and Home commands, each player has only one home, and they will be saved in a different file (homes.yml).
AdminChat to talk to all admin's that are online.

Added the teleportation commands.
Added an invsee command.

Added an updatechecker, and implemented the idea of letting users turn on and off join messages inside the config file.