docs: fix doctype (#224)

ittus · egoist · commit fb36e7c5b436 · 2019-05-11T16:27:40.000+08:00
diff --git a/website/docs/README.md b/website/docs/README.md
@@ -34,7 +34,7 @@ Let's say you have following files in `./my-docs` folder:
 The `index.html` looks like:
 
 ```html {highlight:[7,'10-16']}
-<!DOCTYPE>
+<!DOCTYPE html>
 <html>
   <head>
     <meta charset="utf-8">
@@ -61,15 +61,15 @@ Then you can serve this folder as a static website on your machine using:
 - Golang: `caddy`
 - ..or whatever static web server
 
-Next, you may want to use [sidebar](./options.md#sidebar), [nav](./options.md#nav) or other [options](./options.md) to customize the website. 
+Next, you may want to use [sidebar](./options.md#sidebar), [nav](./options.md#nav) or other [options](./options.md) to customize the website.
 
 Here's a [REPL](https://repl.it/@egoist/docute-starter) where you can try Docute online or [download](https://repl.it/@egoist/docute-starter.zip) it to run locally.
 
 ## Comparisons
 
 ### VuePress / GitBook / Hexo
 
-They all generate static HTML at build time, which is good for SEO. 
+They all generate static HTML at build time, which is good for SEO.
 
 If you care about SEO, you may like using [presite](https://github.com/egoist/presite) to prerender your website.
 
diff --git a/website/docs/guide/offline-support.md b/website/docs/guide/offline-support.md
@@ -31,7 +31,7 @@ workbox.routing.registerRoute(
 Then register this service worker in `index.html`:
 
 ```html {highlight:['16-18']}
-<!DOCTYPE >
+<!DOCTYPE html>
 <html>
   <head>
     <meta charset="utf-8" />
diff --git a/website/docs/zh/README.md b/website/docs/zh/README.md
@@ -34,7 +34,7 @@ Docute 本质上就是一个 JavaScript 文件，它可以获取 Markdown 文件
 `index.html` 看起来像这样：
 
 ```html {highlight:[7,'10-16']}
-<!DOCTYPE>
+<!DOCTYPE html>
 <html>
   <head>
     <meta charset="utf-8">
diff --git a/website/docs/zh/guide/offline-support.md b/website/docs/zh/guide/offline-support.md
@@ -31,7 +31,7 @@ workbox.routing.registerRoute(
 Then register this service worker in `index.html`:
 
 ```html {highlight:['16-18']}
-<!DOCTYPE >
+<!DOCTYPE html>
 <html>
   <head>
     <meta charset="utf-8" />
