DOC: Update changelog

CHANGELOG.md

@@ -13,6 +13,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed ###
 
+- The `TableImporter` and its subclasses now change all integer datatypes to the
+  nullable `pandas.Int64Datatype` s.th. integer columns with empty fields can be
+  treated properly. In case you don't want the datatypes to be changed
+  automatically, initialize the `TableImporter` with
+  `convert_int_to_nullable_int=False`.
+
 ### Deprecated ###
 
 ### Removed ###
@@ -20,12 +26,17 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed ###
 
 - Blacklisted buggy openpyxl version
+- [#62](https://gitlab.com/linkahead/linkahead-advanced-user-tools/-/issues/62)
+  The `TableImporter` now handles empty fields in integer columns by supporting
+  the corresponding [nullable integer
+  types](https://pandas.pydata.org/docs/user_guide/integer_na.html) in Pandas.
 
 ### Security ###
 
 ### Documentation ###
 
 - loadFiles has better `-h` documentation now
+- Rudimentary documentation for `table_importer` module
 
 ## [0.10.0] - 2024-04-24 ##