Update critical file(s) according to Chirpy v7.1.1

Gemfile

@@ -2,7 +2,7 @@
 
 source "https://rubygems.org"
 
-gem "jekyll-theme-chirpy", "~> 7.1"
+gem "jekyll-theme-chirpy", "~> 7.1", ">= 7.1.1"
 
 gem "html-proofer", "~> 5.0", group: :test
 

README.md

@@ -25,25 +25,9 @@ Jekyll site. The following is a list of targets:
 To save you time, and also in case you lose some files while copying, we extract those files/configurations of the
 latest version of the **Chirpy** theme and the [CD][CD] workflow to here, so that you can start writing in minutes.
 
-## Prerequisites
-
-Follow the instructions in the [Jekyll Docs](https://jekyllrb.com/docs/installation/) to complete the installation of
-the basic environment. [Git](https://git-scm.com/) also needs to be installed.
-
-## Installation
-
-Sign in to GitHub and [**use this template**][use-template] to generate a brand new repository and name it
-`USERNAME.github.io`, where `USERNAME` represents your GitHub username.
-
-Then clone it to your local machine and run:
-
-```console
-$ bundle
-```
-
 ## Usage
 
-Please see the [theme's docs](https://github.com/cotes2020/jekyll-theme-chirpy#documentation).
+Check out the [theme's docs](https://github.com/cotes2020/jekyll-theme-chirpy/wiki).
 
 ## Contributing
 
@@ -55,6 +39,5 @@ This work is published under [MIT][mit] License.
 
 [gem]: https://rubygems.org/gems/jekyll-theme-chirpy
 [chirpy]: https://github.com/cotes2020/jekyll-theme-chirpy/
-[use-template]: https://github.com/cotes2020/chirpy-starter/generate
 [CD]: https://en.wikipedia.org/wiki/Continuous_deployment
 [mit]: https://github.com/cotes2020/chirpy-starter/blob/master/LICENSE