Update 35.3. Testing Spring Boot applications.md

Author: qibaoguang

IV. Spring Boot features/35.3. Testing Spring Boot applications.md

@@ -41,4 +41,4 @@ public class SomeIntegrationTests {
 // ...
 }
 ```
-可以查看[Section 64.4, “Discover the HTTP port at runtime”]()，它描述了如何在测试期间发现分配的实际端口。
+可以查看[Section 64.4, “Discover the HTTP port at runtime”](../IX. ‘How-to’ guides/64.4. Discover the HTTP port at runtime.md)，它描述了如何在测试期间发现分配的实际端口。