Revert "Page header should be wrote by toml style #36"

This reverts commit 5b5a681f5a.

archetypes/default.md

@@ -1,6 +1,6 @@
-+++
-title = "{{ replace .TranslationBaseName "-" " " | title }}"
-date = "{{ dateFormat "2006-01-02T15:04:05Z07:00" .Date }}"
-draft = true
-images = []
-+++
+---
+title: "{{ replace .TranslationBaseName "-" " " | title }}"
+date: {{ dateFormat "2006-01-02T15:04:05Z07:00" .Date }}
+draft: true
+images: []
+---

exampleSite/content/blog/emoji-support.md

@@ -1,8 +1,8 @@
-+++
-title = "Emoji Support"
-date = "2019-03-05"
-draft = false
-+++
+---
+title: "Emoji Support"
+date: 2019-03-05
+draft: false
+---
 
 Emoji can be enabled in a Hugo project in a number of ways.
 <!--more-->

exampleSite/content/blog/markdown-syntax.md

@@ -1,8 +1,8 @@
-+++
-title = "Markdown Syntax Guide"
-date = "2019-03-11"
-draft = false
-+++
+---
+title: "Markdown Syntax Guide"
+date: 2019-03-11
+draft: false
+---
 
 This article offers a sample of basic Markdown syntax that can be used in Hugo content files, also it shows whether basic HTML elements are decorated with CSS in a Hugo theme.
 <!--more-->

exampleSite/content/blog/math-typesetting.mmark

@@ -1,8 +1,8 @@
-+++
-title = "Math Typesetting"
-date = "2019-03-08"
-draft = false
-+++
+---
+title: "Math Typesetting"
+date: 2019-03-08
+draft: false
+---
 
 Mathematical notation in a Hugo project can be enabled by using third party JavaScript libraries.
 <!--more-->

exampleSite/content/blog/placeholder-text.md

@@ -1,8 +1,8 @@
-+++
-title = "Placeholder Text"
-date = "2019-03-09"
-draft = false
-+++
+---
+title: "Placeholder Text"
+date: 2019-03-09
+draft: false
+---
 
 ## Mole et vultus populifer quaque primoque non
 

exampleSite/content/blog/rich-content.md

@@ -1,8 +1,8 @@
-+++
-title = "Rich Content"
-date = "2019-03-10"
-draft = false
-+++
+---
+title: "Rich Content"
+date: 2019-03-10
+draft: false
+---
 
 Hugo ships with several [Built-in Shortcodes](https://gohugo.io/content-management/shortcodes/#use-hugo-s-built-in-shortcodes) for rich content, along with a [Privacy Config](https://gohugo.io/about/hugo-and-gdpr/) and a set of Simple Shortcodes that enable static and no-JS versions of various social media embeds.
 <!--more-->