Make Docker use a volume instead of a volume container

run-service.sh

@@ -2,6 +2,6 @@
 docker rm -f sismics_docs
 docker run \
     -d --name=sismics_docs --restart=always \
-    --volumes-from=sismics_docs_data \
+    -v sismics_docs_data:/data \
     -e 'VIRTUAL_HOST_SECURE=docs.sismics.com' -e 'VIRTUAL_PORT=80' \
     sismics/docs:latest