update doc

Signed-off-by: Nshawn_he <shawn.he@huawei.com>

en/application-dev/reference/apis/js-apis-keycode.md

@@ -8,7 +8,7 @@ The Keycode module provides keycodes for a key device.
 ## Modules to Import
 
 ```js
-import {KeyCode} from '@ohos.multimodalInput.keyCode'
+import {KeyCode} from '@ohos.multimodalInput.keyCode';
 ```
 
 ## KeyCode

en/application-dev/reference/apis/js-apis-keyevent.md

 # Key Event
 
-Represents key events reported by an input device.
+The Key Event module provides key events reported by an input device.
 
 >  **NOTE**
 >