docs(docker): add docker docs

add docker docs

Signed-off-by: mritd <mritd@linux.com>

Docker.md

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+## About Dockerfile
+
+The hysteria docker image is based on the **alpine** system. This means that
+**some glibc calls may not work if you run programs that depend on glibc in a container.**
+
+By default, **bash** is installed in the docker container for debugging, **tzdata** is used to
+provide container time zone configuration, and **ca-certificates** is used to ensure the 
+trust of the ssl certificate chain; in addition, the docker container does not contain 
+any tools other than the alpine standard system.
+
+The hysteria binary is installed in `/usr/local/bin/hysteria`, and the **ENTRYPOINT**
+of the docker container is set to **execute the `hysteria` command**; this means that
+the `hysteria` command is always the first command.
+
+## How to use docker image?
+
+### For standard docker users
+
+You can mount the configuration file to any location of the docker container and use it.
+
+In the following commands, we assume that the **`/root/hysteria.json`** configuration
+file is mounted to **`/etc/hysteria.json`**:
+
+```sh
+# Please replace `/root/hysteria.json` with the actual configuration file location
+docker run -dt --name hysteria \
+    -v /root/hysteria.json:/etc/hysteria.json \
+    tobyxdd/hysteria -config /etc/hysteria.json server
+```
+
+### For docker-compose users
+
+First, you need to create a directory with any name, and then copy [docker-compise.yaml](https://raw.githubusercontent.com/HyNetwork/hysteria/master/docker-compose.yaml) to 
+that directory. Finally, create your configuration file and start it.
+
+```sh
+# Create dir
+mkdir hysteria && cd hysteria
+
+# Download the docker-compose example config
+wget https://raw.githubusercontent.com/HyNetwork/hysteria/master/docker-compose.yaml
+
+# Create your config
+cat <<EOF > hysteria.json
+{
+  "listen": ":36712",
+  "acme": {
+    "domains": [
+      "your.domain.com"
+    ],
+    "email": "hacker@gmail.com"
+  },
+  "obfs": "fuck me till the daylight",
+  "up_mbps": 100,
+  "down_mbps": 100
+}
+EOF
+
+# Start container
+docker-compose up -d
+```
+
+
+

Docker.zh.md

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+## 关于 Dockerfile
+
+hysteria 的 docker 镜像基于 **alpine** 系统，这意味着如果您在容器里运行一些依赖于 glibc
+的自定义程序可能会失败。
+
+默认情况下容器内安装了 **`bash`** 用于调试目的，安装的 **`tzdata`** 用于提供容器的时区信息；
+为了保证 ACME 等连其他网站时 SSL 证书信任还安装了 **`ca-certificates`**；除此之外容器内不包含
+任何非标准 alpine 系统的其他工具。
+
+hysteria 二进制可执行文件默认被安装到 `/usr/local/bin/hysteria`，同时容器的 **ENTRYPOINT**
+被设置为**执行 `hysteria` 命令**；这意味着在不进行覆盖的情况下容器启动后首先将执行 `hysteria`
+命令。
+
+## 如何使用本镜像?
+
+### 标准 Docker 用户
+
+您可以将配置文件挂载到容器内的任何位置然后使用它。
+
+在下面的命令中我们假设将 **`/root/hysteria.json`** 配置文件挂载为容器内的 **`/etc/hysteria.json`** 文件。
+
+```sh
+# Please replace `/root/hysteria.json` with the actual configuration file location
+docker run -dt --name hysteria \
+    -v /root/hysteria.json:/etc/hysteria.json \
+    tobyxdd/hysteria -config /etc/hysteria.json server
+```
+
+### Docker Compose 用户 
+
+首先您需要创建一个任意名称的目录，然后将项目内的 [docker-compise.yaml](https://raw.githubusercontent.com/HyNetwork/hysteria/master/docker-compose.yaml) 文件复制到该目录；
+最后创建自己的配置文件并启动即可。
+
+```sh
+# Create dir
+mkdir hysteria && cd hysteria
+
+# Download the docker-compose example config
+wget https://raw.githubusercontent.com/HyNetwork/hysteria/master/docker-compose.yaml
+
+# Create your config
+cat <<EOF > hysteria.json
+{
+  "listen": ":36712",
+  "acme": {
+    "domains": [
+      "your.domain.com"
+    ],
+    "email": "hacker@gmail.com"
+  },
+  "obfs": "fuck me till the daylight",
+  "up_mbps": 100,
+  "down_mbps": 100
+}
+EOF
+
+# Start container
+docker-compose up -d
+```
+

docker-compose.yaml

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+version: '3.8'
+services:
+  hysteria:
+    image: tobyxdd/hysteria
+    container_name: hysteria
+    restart: always
+    network_mode: "host"
+    volumes:
+      - ./hysteria.json:/etc/hysteria.json
+    command: ["-config","/etc/hysteria.json","server"]