Improve the docs

- Add missing url references in the tutorial
- Add gem version badge in README

README.md

@@ -5,6 +5,7 @@ Language: English | [简体中文](https://github.com/cotes2020/jekyll-theme-chi
 [![Build Status](https://github.com/cotes2020/jekyll-theme-chirpy/workflows/build/badge.svg?branch=master&event=push)](https://github.com/cotes2020/jekyll-theme-chirpy/actions?query=branch%3Amaster+event%3Apush)
 [![Codacy Badge](https://api.codacy.com/project/badge/Grade/8220b926db514f13afc3f02b7f884f4b)](https://app.codacy.com/manual/cotes2020/jekyll-theme-chirpy?utm_source=github.com&utm_medium=referral&utm_content=cotes2020/jekyll-theme-chirpy&utm_campaign=Badge_Grade_Dashboard)
 [![GitHub license](https://img.shields.io/github/license/cotes2020/jekyll-theme-chirpy.svg)](https://github.com/cotes2020/jekyll-theme-chirpy/blob/master/LICENSE)
+[![Gem Version](https://img.shields.io/gem/v/jekyll-theme-chirpy?color=important)](https://rubygems.org/gems/jekyll-theme-chirpy)
 [![996.icu](https://img.shields.io/badge/link-996.icu-%23FF4D5B.svg)](https://996.icu)
 
 A minimal, sidebar, responsive web design Jekyll theme that focuses on text presentation. Designed to help you record and share your knowledge easily. [Live Demo »](https://chirpy.cotes.info)
@@ -220,3 +221,4 @@ This work is published under [MIT](https://github.com/cotes2020/jekyll-theme-chi
 [use-starter]: https://github.com/cotes2020/chirpy-starter/generate
 [workflow]: https://github.com/cotes2020/jekyll-theme-chirpy/blob/master/.github/workflows/pages-deploy.yml.hook
 [jb]: https://www.jetbrains.com/?from=jekyll-theme-chirpy
+

_posts/2019-08-09-getting-started.md

@@ -69,7 +69,6 @@ $ bash tools/init.sh
 What it does is:
 
 1. Remove some files or directories from your repository:
-
     - `.travis.yml`
     - files under `_posts`
     - folder `docs`
@@ -78,7 +77,6 @@ What it does is:
 
 3. Automatically create a commit to save the changes.
 
-
 ## Usage
 
 ### Configuration
@@ -157,3 +155,7 @@ $ docker run -it --rm \
 ```
 
 Unless you specified the output path, the generated site files will be placed in folder `_site` of the project's root directory. Now you should upload those files to your web server.
+
+[starter]: https://github.com/cotes2020/chirpy-starter
+[use-starter]: https://github.com/cotes2020/chirpy-starter/generate
+[workflow]: https://github.com/cotes2020/jekyll-theme-chirpy/blob/master/.github/workflows/pages-deploy.yml.hook

docs/README.zh-CN.md

@@ -5,6 +5,7 @@ Language: [English](https://github.com/cotes2020/jekyll-theme-chirpy#readme) |
 [![Build Status](https://github.com/cotes2020/jekyll-theme-chirpy/workflows/build/badge.svg?branch=master&event=push)](https://github.com/cotes2020/jekyll-theme-chirpy/actions?query=branch%3Amaster+event%3Apush)
 [![Codacy Badge](https://api.codacy.com/project/badge/Grade/8220b926db514f13afc3f02b7f884f4b)](https://app.codacy.com/manual/cotes2020/jekyll-theme-chirpy?utm_source=github.com&utm_medium=referral&utm_content=cotes2020/jekyll-theme-chirpy&utm_campaign=Badge_Grade_Dashboard)
 [![GitHub license](https://img.shields.io/github/license/cotes2020/jekyll-theme-chirpy.svg)](https://github.com/cotes2020/jekyll-theme-chirpy/blob/master/LICENSE)
+[![Gem Version](https://img.shields.io/gem/v/jekyll-theme-chirpy?color=important)](https://rubygems.org/gems/jekyll-theme-chirpy)
 [![996.icu](https://img.shields.io/badge/link-996.icu-%23FF4D5B.svg)](https://996.icu)
 
 一个不一样的 Jekyll 主题，采用响应式设计，方便记录、管理、分享你的知识和经验。[懂的进 »](https://chirpy.cotes.info)