diff --git a/src/net/sourceforge/plantuml/chronology/readme.md b/src/net/sourceforge/plantuml/chronology/readme.md
new file mode 100644
index 000000000..59ffb89f4
--- /dev/null
+++ b/src/net/sourceforge/plantuml/chronology/readme.md
@@ -0,0 +1,10 @@
+# Directory Documentation for `chronology`
+
+## Description
+This package provides classes used to manage [Chronology Diagram](https://plantuml.com/chronology-diagram).
+
+## Link
+- [Chronology Diagram](https://plantuml.com/chronology-diagram)
+
+## Reference
+- [Gantt Diagram](https://plantuml.com/gantt-diagram)