Update changelog.

Author: moigagoo

changelog.md

@@ -8,9 +8,10 @@
 -   [d]—docs improvement
 
 
-## 2.8.4 (December 24, 2024
+## 2.8.4 (December 24, 2024)
 
 - [f] Fix connection pool creation for Nim 2.2.0 (see [#206](https://github.com/moigagoo/norm/pull/206)).
+- [d] Update the docs in the code for the improved docgen in Nim 2.2.0.
 
 
 ## 2.8.3 (July 5, 2024)