Update CHANGELOG, history, and documentation

docs/_docs/08-ui-text.md

@@ -2,7 +2,7 @@
 title: "UI Text"
 permalink: /docs/ui-text/
 excerpt: "Text for customizing user interface elements found in the theme."
-last_modified_at: 2019-08-27T15:45:54-04:00
+last_modified_at: 2020-03-04T16:07:16-05:00
 ---
 
 Text for UI elements, `_layouts`, and `_includes` grouped together as a set of translation keys. This is by no means a full-on i18n solution, but it does help make customizing theme text a bit easier.
@@ -19,6 +19,7 @@ The English[^yaml-anchors] main keys in [`_data/ui-text.yml`](https://github.com
 - Greek
 - Hungarian
 - Indonesian
+- Irish (Gaeilge)
 - Italian (Italiano)
 - Korean
 - Japanese

docs/_docs/18-history.md

@@ -5,7 +5,7 @@ permalink: /docs/history/
 excerpt: "Change log of enhancements and bug fixes made to the theme."
 sidebar:
   nav: docs
-last_modified_at: 2020-03-02T16:25:42-05:00
+last_modified_at: 2020-03-04T16:06:24-05:00
 toc: false
 ---
 
@@ -13,6 +13,7 @@ toc: false
 
 ### Enhancements
 
+- Add Irish (Gaeilge) localized UI text strings. [#2422](https://github.com/mmistakes/minimal-mistakes/pull/2422)
 - Remove `box-shadow` on radio and checkbox inputs. [#2398](https://github.com/mmistakes/minimal-mistakes/pull/2398)
 - Bump Jekyll gem dependency to `v3.7`.