Fix missing backup-folder in README

Signed-off-by: Lixfel <lixfel@steamwar.de>

README.md

@@ -7,11 +7,12 @@ for different purposes is currently not possible.**
 
 1. Install a WorldEdit plugin and the FightSystem plugin on the server
 2. Start the server once (will instantly shutdown due to missing FightSystem configuration)
-3. Configure FightSystem by modifying plugins/FightSystem/config.yml
-4. Create a config.yml in the world folder and configure the file as described at the end of plugins/FightSystem/config.yml
-5. Start and join the server (as op), create a basic kit, save it with `/ak [kitname]`
-6. Configure the kit as default kit
-7. Restart the server and have fun!
+3. Configure FightSystem by modifying `plugins/FightSystem/config.yml`
+4. Create a `backup` folder inside your world folder and copy your `region` folder and `level.dat` into it
+5. Create a `config.yml` in the world folder and configure the file as described at the end of `plugins/FightSystem/config.yml`
+6. Start and join the server (as op), create a basic kit, save it with `/ak [kitname]`
+7. Configure the kit as default kit
+8. Restart the server and have fun!
 
 To start a server in the testarena mode start the server with the flag `-DfightID=-1` prior to `-jar`.