Update CHANGELOG.rst

Author: davidhopkinson26

CHANGELOG.rst

@@ -17,7 +17,7 @@ Subsections for each version can be one of the following;
 Each individual change should have a link to the pull request after the description of the change.
 
 
-1.3.0 (unreleased)
+1.3.0 (2024-06-13)
 ------------------
 Added
 ^^^^^
@@ -56,8 +56,7 @@ Changed
 
 Removed
 ^^^^^^^
-- Functionality for BaseTransformer (and thus all transformers) to take `None` as an option for columns. This behaviour was inconsistently implemented across transformers. Rather than extending to all we decided to remove 
-this functionality. This required updating a lot of test files.
+- Functionality for BaseTransformer (and thus all transformers) to take `None` as an option for columns. This behaviour was inconsistently implemented across transformers. Rather than extending to all we decided to remove this functionality. This required updating a lot of test files.
 - The `columns_set_or_check()` method from BaseTransformer. With the above change it was no longer necessary. Subsequent updates to nominal transformers and their tests were required.
 - Set pd copy_on_write to True (will become default in pandas 3.0) which allowed the functionality of the copy method of the transformers to be dropped `#197 <https://github.com/lvgig/tubular/pull/197>`_