[skip ci] More docs updates

Author: jonatack

CHANGELOG.md

@@ -5,8 +5,8 @@
 
 *   [WIP/experimental] Add compatibility with Rails 5/master and Arel 7.
 
-*   Update the Contributing Guide with detailed steps for contributing to
-    Ransack.
+*   Update the [Contributing Guide](CONTRIBUTING.md) with detailed steps for
+    contributing to Ransack.
 
 *   Broaden the test suite database options in `schema.rb` and add
     code documentation.
@@ -27,10 +27,11 @@
 
 ### Fixed
 
-*   Stop relying on Active Record::relation#where_values which are deprecated
+*   Stop relying on `Active Record::relation#where_values` which are deprecated
     in Rails 5.
 
-*   Make the ransacker_args test work correctly with Sqlite3.
+*   Make the test for passing search arguments to a ransacker
+    (`ransacker_args`) work correctly with Sqlite3.
 
     *Jon Atack*
 

README.md

@@ -33,17 +33,13 @@ you're reading the documentation for the master branch with the latest features.
 ## Getting started
 
 Ransack is compatible with Rails 3 and 4 (including 4.2.1) on Ruby 1.9 and
-later.
-
-It currently works with Rails 5/master too -- although changes in Arel and
-Active Record keep that a moving target.
+later. It currently works with Rails 5 as well, though changes in Arel and
+Active Record keep that a moving target. If you are using Ruby 1.8, you can use
+an earlier version of Ransack up to v1.3.0.
 
 Ransack works out-of-the-box with Active Record and also features experimental
 support for Mongoid 4.0 (without associations, further details below).
 
-If you are using Ruby 1.8, you may need to use an earlier version of Ransack,
-like 1.3.0.
-
 In your Gemfile, for the last officially released Ransack gem:
 
 ```ruby