mv docker to deploy/docker

deploy/docker/hubserving/README.md

@@ -20,7 +20,7 @@ git clone https://github.com/PaddlePaddle/PaddleOCR.git
 ```
 b. Goto Dockerfile directory（ps：Need to distinguish between cpu and gpu version, the following takes cpu as an example, gpu version needs to replace the keyword）
 ```
-cd docker/cpu
+cd deploy/docker/cpu
 ```
 c. Build image
 ```

deploy/docker/hubserving/README_cn.md

@@ -20,7 +20,7 @@ git clone https://github.com/PaddlePaddle/PaddleOCR.git
 ```
 b.切换至Dockerfile目录（注：需要区分cpu或gpu版本，下文以cpu为例，gpu版本需要替换一下关键字即可）
 ```
-cd docker/cpu
+cd deploy/docker/cpu
 ```
 c.生成镜像
 ```