docs: update demo posts

content/post/2019-08-08-write-a-new-post/index.en.md

@@ -11,31 +11,37 @@ tags:
 pin: True
 ---
 
+> **NOTE:** This tutorial is not fully migrated from the Jekyll version -- please reference with caution.
+{ .prompt-warning }
+
 This tutorial will guide you how to write a post in the _Chirpy_ template, and it's worth reading even if you've used Jekyll before, as many features require specific variables to be set.
 
 ## Naming and Path
 
-Create a new file named `YYYY-MM-DD-TITLE.EXTENSION`{: .filepath} and put it in the `_posts`{: .filepath} of the root directory. Please note that the `EXTENSION`{: .filepath} must be one of `md`{: .filepath} and `markdown`{: .filepath}. If you want to save time of creating files, please consider using the plugin [`Jekyll-Compose`](https://github.com/jekyll/jekyll-compose) to accomplish this.
+Create a new file using `hugo new content/post/YYYY-MM-DD-TITLE.md`. You can change the path as you like, but note that all the posts should be placed in {{< markdown/filepath src="content/post" >}} of the root directory.
 
 ## Front Matter
 
-Basically, you need to fill the [Front Matter](https://jekyllrb.com/docs/front-matter/) as below at the top of the post:
+Basically, the [Front Matter](https://jekyllrb.com/docs/front-matter/) is initialized by hugo as below at the top of the post:
 
 ```yaml
 ---
 title: TITLE
 date: YYYY-MM-DD HH:MM:SS +/-TTTT
-categories: [TOP_CATEGORY, SUB_CATEGORY]
-tags: [TAG]     # TAG names should always be lowercase
+draft: true
 ---
 ```
 
+You can add the following fields as needed:
+```yaml
+categories: [TOP_CATEGORY, SUB_CATEGORY] # only two categories are supported
+tags: [TAG]     # TAG names should always be lowercase
+pin: true      # it means this post will show at the top of the home page.
+description: Hello, World! # description of this post
+```
+
 > The posts' _layout_ has been set to `post` by default, so there is no need to add the variable _layout_ in the Front Matter block.
-{: .prompt-tip }
-
-### Timezone of Date
-
-To accurately record the release date of a post, you should not only set up the `timezone` of `_config.yml`{: .filepath} but also provide the post's timezone in variable `date` of its Front Matter block. Format: `+/-TTTT`, e.g. `+0800`.
+{ .prompt-tip }
 
 ### Categories and Tags
 
@@ -50,32 +56,7 @@ tags: [bee]
 
 ### Author Information
 
-The author information of the post usually does not need to be filled in the _Front Matter_ , they will be obtained from variables `social.name` and the first entry of `social.links` of the configuration file by default. But you can also override it as follows:
-
-Adding author information in `_data/authors.yml` (If your website doesn't have this file, don't hesitate to create one).
-
-```yaml
-<author_id>:
-  name: <full name>
-  twitter: <twitter_of_author>
-  url: <homepage_of_author>
-```
-{: file="_data/authors.yml" }
-
-And then use `author` to specify a single entry or `authors` to specify multiple entries:
-
-```yaml
----
-author: <author_id>                     # for single entry
-# or
-authors: [<author1_id>, <author2_id>]   # for multiple entries
----
-```
-
-Having said that, the key `author` can also identify multiple entries.
-
-> The benefit of reading the author information from the file `_data/authors.yml`{: .filepath } is that the page will have the meta tag `twitter:creator`, which enriches the [Twitter Cards](https://developer.twitter.com/en/docs/twitter-for-websites/cards/guides/getting-started#card-and-content-attribution) and is good for SEO.
-{: .prompt-info }
+The author information of the post usually does not need to be filled in the _Front Matter_ , they will be obtained from variables `social.name` and the first entry of `social.links` of the configuration file by default. But you can also override it in the configuration.
 
 ### Post Description