add comment to make clear that this command does not provide a version selector

Author: PhilippSalvisberg

tools/serve.sh

@@ -1,4 +1,5 @@
 #!/bin/bash
 
+# serves from temporary site directory - use during development for live preview of changes in docs directory
 DATA_DIR="$(cd "$(dirname "${0}")/.." && pwd)"
 docker run -v ${DATA_DIR}:/data -p 8000:8000 --rm -it trivadis/mktools bash -c "cd /data; mkdocs serve -a 0.0.0.0:8000"