diff --git a/docs/beta-ref.json b/docs/beta-ref.json
new file mode 100644
index 00000000..4a822509
--- /dev/null
+++ b/docs/beta-ref.json
@@ -0,0 +1,3 @@
+{
+    "appref": "v0.5.1"
+}
diff --git a/docs/index-ref.json b/docs/index-ref.json
new file mode 100644
index 00000000..4a822509
--- /dev/null
+++ b/docs/index-ref.json
@@ -0,0 +1,3 @@
+{
+    "appref": "v0.5.1"
+}