Posted 2.28.0 release announcement (#822)

Communicate the 2.28.0 release.

docs/_config.yml

@@ -9,7 +9,7 @@
 release:
   git_url: https://github.com/gantsign/development-environment.git
   list_url: https://github.com/gantsign/development-environment/releases
-  version: '2.27.0'
+  version: '2.28.0'
 
 # Site Settings
 locale: en-GB

docs/_posts/2022-04-24-2.28.0-release.md

@@ -0,0 +1,34 @@
+---
+title: Version 2.28.0 released
+categories:
+  - news
+tags:
+  - release
+description: >
+  Version 2.28.0 of this project has been released.
+excerpt: >
+  Release highlights: Go 1.18.1, Java 8u322 & 11.0.14…
+
+read_time: no
+date: 2022-04-24T14:44:32+01:00
+modified: 2022-04-24T14:44:32+01:00
+---
+
+## Release highlights
+
+* [#807](https://github.com/gantsign/development-environment/pull/807):
+  Updated Java 8 to 8u322
+* [#808](https://github.com/gantsign/development-environment/pull/808):
+  Updated Java 11 to 11.0.14
+* [#813](https://github.com/gantsign/development-environment/pull/813):
+  Updated Go lang to 1.18.1
+
+## Full change list
+
+For a full list of changes view the
+[release notes](https://github.com/gantsign/development-environment/releases/tag/2.28.0).
+
+## Upgrade procedure
+
+To upgrade follow the
+[upgrade documentation]({{ '/docs/upgrade/' | relative_url }}).