CONTRIBUTING.md in adminpanel-2.3.0 vs CONTRIBUTING.md in adminpanel-2.3.1

@@ -5,18 +5,21 @@
 * :memo:`:memo:` when writing docs
 * :bug:`:bug:` when fixing a bug
 * :fire:`:fire:` when removing code or files
 * :green_heart:`:green_heart:` when fixing the CI build
 * :white_check_mark:`:white_check_mark:` when adding tests
+* :arrow_up: `:arrow_up:` when upgrading dependencies
+* :arrow_down: `:arrow_down:` when downgrading dependencies
 
-Favor single quotes when not concatenating, double quotes are prefered when concatenating, escaping characters or using a single quote in the string:
+Favor single quotes when not concatenating, double quotes are prefered when
+concatenating, escaping characters or using a single quote in the string:
 
 Single Quotes:
-`puts 'hello world'`
+`puts 'hello adminpanel'`
 Double Quotes:
-```
+```ruby
 h = 'hello'
-w = 'world'
-puts "#{h}, #{w}"
+a = 'adminpanel'
+puts "#{h}, #{a}"
 puts "\n hi"
 puts "it's 6 am"
 ```