diff --git a/.gitignore b/.gitignore
index 51f866a..9a3b9c5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,3 @@
 *.log
 .rocksdb
-data
 workshop
diff --git a/data b/data
new file mode 160000
index 0000000..4948273
--- /dev/null
+++ b/data
@@ -0,0 +1 @@
+Subproject commit 4948273f9a7bd545416a4465e5df3b31f1a6edae