CHANGELOG.md in prawn-icon-3.0.0 vs CHANGELOG.md in prawn-icon-3.1.0

@@ -1,4 +1,23 @@
+# 3.1.0 - September 1, 2022
+
+* Update our CI matrix to include recent versions of Prawn and Ruby! Thanks @petergoldstein! (#55)
+* Resolve a few code smells that were flagged by Rubocop.
+* [Material Design Icons](https://materialdesignicons.com) are now supported! Currently version `7.0.96` is included. Thanks @maneex! [https://github.com/jessedoyle/prawn-icon/pull/59](Pull Request).
+* Memoize calls to `Prawn::Icon::FontData#path` to improve performance.
+
+#### Material Design Icons
+
+All Material Design Icons use the font prefix of `mdi`. That means that you're able to reference an icon as follows:
+
+```ruby
+require 'prawn/icon'
+
+Prawn::Document.generate('icons.pdf') do |pdf|
+  pdf.icon 'mdi-beer', size: 60
+end
+```
+
 # 3.0.0 - November 10, 2020
 
 * **breaking change** - Fix incorrect layout and line-wrapping logic for inline-formatted icons. Please see [Inline Format Changes](#inline-format-changes) for more details.
 * Add a `#formatted_icon_box` method to retain the previous inline icon behaviour.
 * Allow `#formatted_icon_box` to accept absolute positioning parameters (`x`, `y`, and `at`). Thanks @navinspm!