update en/device-dev/quick-start/quickstart-standard-docker-environment.md.

Signed-off-by: Nester.zhou <ester.zhou@huawei.com>

https://gitee.com/openharmony/docs/issues/I4T4S8

en/device-dev/quick-start/quickstart-standard-docker-environment.md

@@ -82,7 +82,7 @@ By default, the downloaded prebuilts binary file is stored in  **OpenHarmony\_2.
     ./build.sh --product-name {product_name} --ccache
     ```
 
-    **product\_name**  indicates the platform supported by the current distribution, for example, Hi3516DV300, rk3568.
+    **product\_name**  indicates the platform supported by the current distribution, for example, Hi3516DV300 and rk3568.
 
     Files generated during building are stored in the  **out/{device_name}/**  directory, and the generated image is stored in the  **out/{device_name}/packages/phone/images/**  directory.