change ownership of work directory to user mindstorms on persistent sticks

tools/rc.local.sh

@@ -22,6 +22,7 @@ sudo chown -R mindstorms:mindstorms ${DOCUMENTATION_DIR}
 
 mkdir -p /mnt/localfs /home/mindstorms/work
 chmod 700 /mnt
+chown -R mindstorms:mindstorms /home/mindstorms/work
 
 shopt -s nullglob