From bc1471a9f1385664adb9bc26a204670e24917751 Mon Sep 17 00:00:00 2001
From: Nathan Bu <370788475@qq.com>
Date: Tue, 21 Feb 2023 13:22:53 +0800
Subject: [PATCH] Update CONTRIBUTING.md

---
 CONTRIBUTING.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 76f6e3d66..d9d889e0d 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -26,6 +26,10 @@ to group your changes into a small number of commits which we can review one at
 When completing a pull request, we will generally squash your changes into a single commit. Please
 let us know if your pull request needs to be merged as separate commits.
 
+### Technical design practice
+
+We use the [PlantUML](https://github.com/plantuml/plantuml) generation tool to provide planning solution and clarity for the architecture design of Hydra Lab, and most of the designs are documented in `*.puml` files, and running the following gradle task will generate the UML images in folder [docs/images/UML](docs/images/UML).
+
 ## Coding style conventions
 
 Under most cases, new file/folder name should follow the [snake case](https://en.wikipedia.org/wiki/Snake_case) style patterns. A fully capitalized name should come with a reasonable justification.