Add ESC key shortcut to exit subgraph

interface/features/subgraph.mdx

@@ -111,11 +111,13 @@ The navigation bar shows your current level and lets you easily move between nes
 
 ### Exit subgraph
 
-To exit a subgraph and return to the parent level, use the **Navigation bar** (labeled 1 in the image) at the top of the canvas.
+To exit a subgraph and return to the parent level:
+- Use the **Navigation bar** (labeled 1 in the image) at the top of the canvas, or
+- Press the **Esc** key
 
 ![Subgraph editing mode](/images/interface/features/subgraph/editing_subgraph.jpg)
 
-Click on the navigation bar to exit the current subgraph and return to the parent workflow.
+Click on the navigation bar or press Esc to exit the current subgraph and return to the parent workflow.
 
 ## Unpack Subgraphs to Nodes
 

zh-CN/interface/features/subgraph.mdx

@@ -108,11 +108,13 @@ icon: "share-nodes"
 
 ### 5. 退出子图
 
-要退出子图并返回上一级，可以使用画布顶部的**导航栏**(图中标记为 1)。
+要退出子图并返回上一级：
+- 使用画布顶部的**导航栏**(图中标记为 1)，或
+- 按 **Esc** 键
 
 ![子图编辑状态](/images/interface/features/subgraph/editing_subgraph.jpg)
 
-点击导航栏即可退出当前子图，返回到父级工作流。
+点击导航栏或按 Esc 键即可退出当前子图，返回到父级工作流。
 
 ## 将子图转回普通节点