./README.md in sinatra-param-1.3.1 vs ./README.md in sinatra-param-1.4.0

@@ -9,10 +9,24 @@
 
 **`sinatra-param` allows you to declare, validate, and transform endpoint parameters as you would in frameworks like [ActiveModel](http://rubydoc.info/gems/activemodel/3.2.3/frames) or [DataMapper](http://datamapper.org/).**
 
 > Use `sinatra-param` in combination with [`Rack::PostBodyContentTypeParser` and `Rack::NestedParams`](https://github.com/rack/rack-contrib) to automatically parameterize JSON `POST` bodies and nested parameters.
 
+## Install
+
+You can install `sinatra-param` from the command line with the following:
+
+```bash
+$ gem install sinatra-param
+```
+
+Alternatively, you can specify `sinatra-param` as a dependency in your `Gemfile` and run `$ bundle install`:
+
+```ruby
+gem "sinatra-param", require: "sinatra/param"
+```
+
 ## Example
 
 ``` ruby
 require 'sinatra/base'
 require 'sinatra/param'
@@ -79,22 +93,33 @@
 ```ruby
 param :order, String, in: ["ASC", "DESC"], transform: :upcase, default: "ASC"
 param :offset, Integer, min: 0, transform: lambda {|n| n - (n % 10)}
 ```
 
-### Mutual Exclusivity
+## One Of
 
-Using `one_of`, routes can specify two or more parameters to be mutually exclusive, and fail if more than one of those parameters is specified:
+Using `one_of`, routes can specify two or more parameters to be mutually exclusive, and fail if _more than one_ of those parameters is provided:
 
 ```ruby
 param :a, String
 param :b, String
 param :c, String
 
 one_of :a, :b, :c
 ```
 
+## Any Of
+
+Using `any_of`, a route can specify that _at least one of_ two or more parameters are required, and fail if _none of them_ are provided:
+
+```ruby
+param :x, String
+param :y, String
+
+any_of :x, :y
+```
+
 ### Exceptions
 
 By default, when a parameter precondition fails, `Sinatra::Param` will `halt 400` with an error message:
 
 ```json
@@ -124,14 +149,10 @@
 one_of :q, :categories, raise: true
 ```
 
 ## Contact
 
-Mattt Thompson
+Mattt Thompson ([@mattt](http://twitter.com/mattt))
 
-- http://github.com/mattt
-- http://twitter.com/mattt
-- [e-mail]
-
 ## License
 
-sinatra-param is available under the MIT license. See the LICENSE file for more info.
+sinatra-param is released under an MIT license. See LICENSE for more information.