Improved the changelog.

Signed-off-by: Hermann Mayer <hermann.mayer92@gmail.com>

CHANGELOG.md

@@ -2,60 +2,60 @@
 
 * TODO: Replace this bullet point with an actual description of a change.
 
-### 1.6.5
+### 1.6.5 (15 August 2024)
 
 * Just a retag of 1.6.1
 
-### 1.6.4
+### 1.6.4 (15 August 2024)
 
 * Just a retag of 1.6.1
 
-### 1.6.3
+### 1.6.3 (15 August 2024)
 
 * Just a retag of 1.6.1
 
-### 1.6.2
+### 1.6.2 (9 August 2024)
 
 * Just a retag of 1.6.1
 
-### 1.6.1
+### 1.6.1 (9 August 2024)
 
 * Added API docs building to continuous integration (#13)
 
-### 1.6.0
+### 1.6.0 (8 July 2024)
 
 * Moved the development dependencies from the gemspec to the Gemfile (#11)
 * Dropped support for Ruby <2.7 (#12)
 
-### 1.5.0
+### 1.5.0 (24 February 2023)
 
 * Added support for Gem release automation
 
-### 1.4.0
+### 1.4.0 (18 January 2023)
 
 * Bundler >= 2.3 is from now on required as minimal version (#10)
 * Dropped support for Ruby < 2.5 (#10)
 * Dropped support for Rails < 5.2 (#10)
 * Updated all development/runtime gems to their latest
   Ruby 2.5 compatible version (#10)
 
-### 1.3.2
+### 1.3.2 (15 October 2021)
 
 * Migrated to Github Actions
 * Migrated to our own coverage reporting
 * Added the code statistics to the test process
 
-### 1.3.1
+### 1.3.1 (12 May 2021)
 
 * Corrected the GNU Make release target
 
-### 1.3.0
+### 1.3.0 (9 September 2020)
 
 * Dropped support for Rails <5.2 (#9)
 * Dropped support for Ruby <2.5 (#9)
 * Updated the faraday gem spec to `~> 1.0` (#9)
 
-### 1.2.0
+### 1.2.0 (6 March 2019)
 
 * Added a changelog file to track changes for library users
 * Allow newer version of faraday/faraday-middleware. (#7)
@@ -64,11 +64,11 @@
 * Dropped support for EOL Ruby 2.2
 * Added support for Ruby 2.6
 
-### 1.1.0
+### 1.1.0 (6 September 2018)
 
 * Add support for property `international_country_region` in address
 
-### 1.0.0
+### 1.0.0 (9 May 2018)
 
 * The first stable release
 * All initial Immoscout models are mapped