chore(deps): update dependency idoc to v1.21.4

Author: jaywcjlove

.idoc/.filesStat.json

@@ -12,15 +12,15 @@
     "birthtime": "2022-03-30T12:48:22.823Z"
   },
   "docs/sourcegraph/README.md": {
-    "atime": "2022-04-20T16:15:14.107Z",
-    "mtime": "2022-04-20T16:14:39.559Z",
-    "ctime": "2022-04-20T16:14:59.099Z",
+    "atime": "2022-06-27T01:38:21.934Z",
+    "mtime": "2022-06-27T01:38:35.374Z",
+    "ctime": "2022-06-27T01:38:35.374Z",
     "birthtime": "2021-03-03T06:16:24.952Z"
   },
   "docs/seaweedfs/README.md": {
-    "atime": "2022-04-20T16:48:24.642Z",
-    "mtime": "2022-04-20T16:48:22.272Z",
-    "ctime": "2022-04-20T16:48:22.272Z",
+    "atime": "2022-06-27T01:39:28.923Z",
+    "mtime": "2022-06-27T01:39:28.864Z",
+    "ctime": "2022-06-27T01:39:28.864Z",
     "birthtime": "2021-03-03T06:16:24.952Z"
   },
   "docs/rocket.chat/README.md": {
@@ -88,5 +88,11 @@
     "mtime": "2022-04-20T16:39:22.340Z",
     "ctime": "2022-04-20T16:39:22.340Z",
     "birthtime": "2021-03-03T06:16:24.951Z"
+  },
+  "README.md": {
+    "atime": "2022-06-27T06:53:45.035Z",
+    "mtime": "2022-06-27T06:53:44.994Z",
+    "ctime": "2022-06-27T06:53:44.994Z",
+    "birthtime": "2022-06-27T00:18:49.215Z"
   }
 }

README.md

@@ -4,7 +4,7 @@
 </p>
 
 <!--idoc:ignore:start-->
-<h1 align="center">Docker入门教程</h1>
+<h1 align="center">Docker 入门教程</h1>
 <!--idoc:ignore:end-->
 
 [Docker](https://www.docker.com/) 是一个开源的应用容器引擎，而一个<ruby>容器<rt>containers</rt></ruby>其实是一个虚拟化的独立的环境，让开发者可以打包他们的应用以及依赖包到一个可移植的容器中，然后发布到任何流行的 Linux 机器上，也可以实现虚拟化。容器是完全使用沙箱机制，相互之间不会有任何接口。

docs/sourcegraph/README.md

@@ -1,10 +1,12 @@
+Sourcegraph
+===
+
 <img alt="Sourcegraph" src="https://camo.githubusercontent.com/fda96ddd0983e308db3ce7dec5cf879bcbdfe0a2/68747470733a2f2f73746f726167652e676f6f676c65617069732e636f6d2f736f7572636567726170682d6173736574732f736f7572636567726170682d6c6f676f2e706e67" height="32px" />
 
 [Sourcegraph](https://about.sourcegraph.com/) 是一个快速，开源，功能齐全的代码搜索和导航引擎。
 
 ![Screenshot](https://user-images.githubusercontent.com/1646931/46309383-09ba9800-c571-11e8-8ee4-1a2ec32072f2.png)
 
-
 ```bash
 docker run \
   --publish 7080:7080 --rm \

package.json

@@ -18,6 +18,6 @@
     "tutorial"
   ],
   "dependencies": {
-    "idoc": "^1.21.1"
+    "idoc": "^1.21.4"
   }
 }