Update critical file(s) according to Chirpy v4.1.1

Gemfile

@@ -1,6 +1,6 @@
 source "https://rubygems.org"
 
-gem "jekyll-theme-chirpy", "~> 4.1", ">= 4.1.0"
+gem "jekyll-theme-chirpy", "~> 4.1", ">= 4.1.1"
 
 group :jekyll_plugins do
   # If you have any plugins, put them here!

_config.yml

@@ -11,11 +11,6 @@ baseurl: ''
 # Go to folder '_data/locales' to check the available language options
 lang: en
 
-# The lang attribute of HTML › http://www.lingoes.net/en/translator/langcode.htm
-# We can specify a language different from the layout of the content.
-# If it is not assigned, the site will use the value of 'lang' instead.
-content_lang: ''
-
 # Change to your timezone › http://www.timezoneconverter.com/cgi-bin/findzone/findzone
 timezone: Asia/Shanghai
 
@@ -173,6 +168,3 @@ jekyll-archives:
   permalinks:
     tag: /tags/:name/
     category: /categories/:name/
-
-# Outdated configuration warning
-outdated: '-- Missing configuration options! --'

_data/locales/en.yml

@@ -61,9 +61,9 @@ post:
   published: 'on'
   updated: Updated
   timeago:
-    day: d ago
+    day: days ago
-    hour: hr ago
+    hour: hours ago
-    minute: min ago
+    minute: minutes ago
     just_now: just now
   words: words
   pageview_measure: views

_data/locales/zh-CN.yml

@@ -24,11 +24,11 @@ search:
 panel:
   lastmod: 最近更新
   trending_tags: 热门标签
-  toc: 目录
+  toc: 文章内容
 
 #  The liquid date format › http://strftime.net/
 date_format:
-  tooltip: '%a, %F, %R %z'
+  tooltip: '%F, %R %z'
   post:
     long: '%F'
     short: '%m-%d'