update Readme File

README.md

@@ -13,6 +13,11 @@ This might take a few minutes depending on the internet connection and computing
 
 ### Running spigot-server
 
+First create the storage directory with the correct permissions
+
+  mkdir -p /data/minecraft/mc-server
+  chown 5:60 /data/minecraft/mc-server
+
 ```
 docker run -it -d \
  -v /data/minecraft/mc-server:/usr/games/mcserv \
@@ -22,3 +27,8 @@ docker run -it -d \
  zombi/spigot-server
 ```
 
+on the first run the buildtools are building the spigot jar file and the container is exiting once done.
+
+restart the container afterwards to run the minecraft server
+
+  docker start spigot-server