update en/device-dev/driver/driver-platform-regulator-develop.md.

Signed-off-by: Nking_he <6384784@qq.com>

en/device-dev/driver/driver-platform-regulator-develop.md

@@ -341,8 +341,6 @@ The regulator module adaptation procedure is as follows:
         }
         ```
     
-4. Debug the driver.
-
-   (Optional) Verify the basic functions of the new driver, for example, whether the test cases are successful after the driver is loaded.
-
+4. (Optional) Debug the driver.
 
+   Verify the basic functions of the new driver, for example, whether the test cases are successful after the driver is loaded.
\ No newline at end of file