fix: onClickCanvas docs

Author: noonnightstorm

README.en-US.md

@@ -45,6 +45,7 @@ npm install react-monitor-dag
 | registerStatus | Register status, which adds class to the node based on its status | <font color="c41d7f">object</font> | key:value, registered by user, corresponded to the status field of node |
 | statusNote | Status note in upper left corner[statusNote Prop](#statusNote) | <font color="c41d7f">object</font> | { } |
 | onClickNode | Single Click Node Event | <font color="c41d7f">(node) => void</font> | - |
+| onClickCanvas | Click Canvas Event | <font color="c41d7f">() => void</font> | - |
 | onContextmenuNode | Right-Click Node Event | <font color="c41d7f">(node) => void</font> | - |
 | onDblClickNode | Double Click Node Event | <font color="c41d7f">(node) => void</font> | - |
 | onClickEdge | Single Click Edge Event | <font color="c41d7f">(edge) => void</font> | - |

README.md

@@ -43,6 +43,7 @@ npm install react-monitor-dag
 | registerStatus | 自行注册状态，根据node的status给节点加上class | <font color="c41d7f">object</font> | key:value的形式，可以自行注册，和node的status字段对应起来 |
 | statusNote | 画布左上角状态注释，见[statusNote Prop](#statusNote) | <font color="c41d7f">object</font> | { } |
 | onClickNode | 单击节点事件 | <font color="c41d7f">(node) => void</font> | - |
+| onClickCanvas | 单击画布事件 | <font color="c41d7f">() => void</font> | - |
 | onContextmenuNode | 右键节点事件 | <font color="c41d7f">(node) => void</font> | - |
 | onDblClickNode | 双击节点事件 | <font color="c41d7f">(node) => void</font> | - |
 | onClickEdge | 单击线段事件 | <font color="c41d7f">(edge) => void</font> | - |