remove outdated content

Signed-off-by: Kang Huaishuai <khs1994@khs1994.com>

.github/workflows/check-link.yml

@@ -1,4 +1,4 @@
-name: check-link
+name: Check link
 
 on:
   # push:

.vuepress/config.js

@@ -62,7 +62,7 @@ module.exports = config({
     repoLabel: 'GitHub',
     hostname: 'https://vuepress.mirror.docker-practice.com',
     // author: 'yeasy',
-    markdown: {
+    mdEnhance: {
       lineNumbers: true,
     },
     themeColor: {

install/mac.md

@@ -47,8 +47,6 @@ $ docker --version
 Docker version 19.03.8, build afacb8b
 $ docker-compose --version
 docker-compose version 1.25.5, build 8a1c60f6
-$ docker-machine --version
-docker-machine version 0.16.1, build cce350d7
 ```
 
 如果 `docker version`、`docker info` 都正常的话，可以尝试运行一个 [Nginx 服务器](https://hub.docker.com/_/nginx/)：

package.json

@@ -8,7 +8,7 @@
     "chalk": "^2.4.2",
     "commander": "^2.0.0",
     "esm": "^3.0.0",
-    "vuepress": "1.7.0",
+    "vuepress": "1.7.1",
     "vuepress-plugin-container": "^2.1.5",
     "vuepress-theme-hope": "^1.0.0"
   },
@@ -17,7 +17,8 @@
     "gitbook:help": "gitbook help",
     "gitbook:build": "gitbook build",
     "gitbook:serve": "gitbook serve",
-    "vuepress:build": "npx vuepress build"
+    "vuepress:build": "npx vuepress build",
+    "vuepress": "npx vuepress"
   },
   "repository": {
     "type": "git",