update en/contribute/how-to-contribute.md.

Signed-off-by: N@ge-yafang <geyafang@huawei.com>

en/contribute/how-to-contribute.md

@@ -24,7 +24,7 @@ For details about how to contribute to code, see  [Code Contributing ](code-cont
 
 ## Auto-Test
 
-For details about how to develop test cases based on test requirements, see [Test Subsystem](../readme/test_subsystem.md).
+For details about how to develop test cases based on test requirements, see [Test Subsystem](../readme/test.md).
 
 ## Contributing Documents<a name="en-us_topic_0000001053868136_section11234185012131"></a>