README.md in null_plus-1.0.0 vs README.md in null_plus-1.0.1

@@ -1,33 +1,33 @@
-# +nil [![[version]](https://badge.fury.io/rb/null_plus.svg)](http://badge.fury.io/rb/null_plus)  [![[travis]](https://travis-ci.org/janlelis/null_plus.png)](https://travis-ci.org/janlelis/null_plus)
+# +`nil` [![[version]](https://badge.fury.io/rb/null_plus.svg)](https://badge.fury.io/rb/null_plus) [![[ci]](https://github.com/janlelis/null_plus/workflows/Test/badge.svg)](https://github.com/janlelis/null_plus/actions?query=workflow%3ATest)
 
-This gem redefines Ruby's unary `+` operator to turn null objects into nil. By default, the unary `+` operator is not used in Ruby, so overloading it is not so dangerous as it might have sound to you when you read it.
+This gem redefines Ruby's unary `+` operator to turn null objects into nil. By default, the unary `+` operator is rarely¹ used by Ruby, so overloading it is not so dangerous as it might have sounded to you when you read it.
 
 Every object that returns [true for `null?`](https://github.com/janlelis/null_question) is considered a null object.
 
+¹ (Ruby 2.3 introduced `+` for String: It will return an unfrozen version of the string)
 
 ## Setup
 
 Add to your **Gemfile**:
 
 ```ruby
 gem "null_plus"
 ```
 
-
 ## Usage
 
 ```ruby
 class NullObject
   def null?
     true
-  end 
+  end
 end
 
 null = NullObject.new
 
-+nil #=> nil 
++nil #=> nil
 +null #=> nil
 +"some object" #=> "some object"
 
 # Useful for settings defaults or checking conditions:
 if +null
@@ -55,6 +55,6 @@
 (+null).class #=> NilClass
 ```
 
 ## J-_-L
 
-Copyright (C) 2015 Jan Lelis <http://janlelis.com>. Released under the MIT license.
+Copyright (C) 2015 Jan Lelis <https://janlelis.com>. Released under the MIT license.