fix todo.md

kakuilan · kakuilan · commit 54909bc9cd69 · 2020-10-18T17:31:26.000+08:00
diff --git a/docs/todo.md b/docs/todo.md
@@ -55,3 +55,5 @@ https://docs.aws.amazon.com/zh_cn/sdk-for-php/v3/developer-guide/guide_promises.
 ```sh
 phpstan analyze src
 ```
+
+numberSub
