Add content to the tutorial

_posts/2019-08-08-write-a-new-post.md

@@ -9,9 +9,11 @@ tags: [writing]
 render_with_liquid: false
 ---
 
+This post will guide you how to write a post on _Chirpy_ theme. Even if you have previous experience with Jekyll, this article is worth reading, because many features require specific variables to be set.
+
 ## Naming and Path
 
-Create a new file named `YYYY-MM-DD-TITLE.EXTENSION` and put it in the `_posts/` of the root directory. Please note that the `EXTENSION` must be one of `md` and `markdown`.
+Create a new file named `YYYY-MM-DD-TITLE.EXTENSION` and put it in the `_posts` of the root directory. Please note that the `EXTENSION` must be one of `md` and `markdown`. 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.
 
 ## Front Matter
 
@@ -26,9 +28,9 @@ tags: [TAG]     # TAG names should always be lowercase
 ---
 ```
 
-> **Note**: 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.
+> **Note**: 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.
 
-### Timezone of date
+### Timezone of Date
 
 In order to accurately record the release date of a post, you should not only set up the `timezone` of `_config.yml` but also provide the post's timezone in variable `date` of its Front Matter block. Format: `+/-TTTT`, e.g. `+0800`.
 
@@ -40,6 +42,17 @@ The `categories` of each post are designed to contain up to two elements, and th
 categories: [Animal, Insect]
 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:
+
+```yaml
+---
+author:
+  name: Full Name
+  url: https://example.com
+---
+```
 
 ## Table of Contents