Add known release dates to changelog

CHANGELOG.md

@@ -4,7 +4,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [3.0.0]
+## [3.0.0] - 2019-03-18
 
 ## Added
 * Block for the block editor to insert a team list in any post type.
@@ -23,7 +23,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## Removed
 * `rplus_wp_team_list()` and `rplus_wp_team_list_classes()`.
 
-## [2.0.1]
+## [2.0.1] - 2017-01-19
 ### Fixed
 * Removed HTML output on profile page.
 * Removed type hint for shortcode attributes to avoid a PHP fatal error.
@@ -34,7 +34,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 * Translations moved to https://translate.wordpress.org/projects/wp-plugins/wp-team-list.
 * Added deprecation notice and removed shortcode UI for `[rplus_team_list]` shortcode in favour of the new `[wp_team_list]` shortcode.
 
-## [2.0.0]
+## [2.0.0] - 2015-11-24
 ### Fixed
 * Smaller corrections in the widget.
 
@@ -48,15 +48,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 * `rplus_wp_team_list()`, use ` wp_team_list()->render_team_list()`.
 * `rplus_wp_team_list_classes()`, use `wp_team_list()->item_classes()`.
 
-## [1.1.2]
+## [1.1.2] - 2015-11-10
 ### Fixed
 * A small error in the previous release.
 
-## [1.1.1]
+## [1.1.1] - 2015-11-10
 ### Changed
 * Allows role 'All' in the widget to display users with any role.
 
-## [1.1.0]
+## [1.1.0] - 2015-10-20
 ### Fixed
 * Corrects tylesheet URL.
 
@@ -65,7 +65,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 * Enable only displaying users with specific IDs (`include` shortcode attribute).
 * Allow querying by users which have published posts (`has_published_posts` shortcode attribute).
 
-## [1.0.5]
+## [1.0.5] - 2015-09-02
 ### Fixed
 * Make 'Order By' string translatable.
 
@@ -81,18 +81,18 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 * Properly translate the link title attributes
 
-## [1.0.2]
+## [1.0.2] - 2015-03-24
 ### Fixed
 * Correctly translate the user roles
 
 ### Added
 * German (Switzerland) translation (de_CH)
 
-## [1.0.1]
+## [1.0.1] - 2015-02-12
 ### Fixed
 * Updated textdomain to match the plugin slug
 
-## 1.0.0
+## 1.0.0 - 2015-02-12
 ### Added
 * Initial Release