chore: reformat changelog

Author: cbueth

docs/changelog.md

@@ -13,8 +13,6 @@
 
 * Add Master Thesis link and references ([febc1ca](https://github.com/BikeNetKit/superblockify/commit/febc1ca86a1665184790cf510101154ac82df483))
 
-## Changelog
-
 ## Version 1.0.1 (2024-12-04)
 
 * 🧹 Lint: Reconfigured linting settings.
@@ -45,8 +43,7 @@
   unified nodes and edges into one variable.
 * 📊 Improved analysis scripts
 
-Version 0.2.2 (2023-06-27)
-**************************
+## Version 0.2.2 (2023-06-27)
 
 * 📊 Unified Plot image format/suffix in config
 * 🔢 Key Figures: lightweight results for analysis, see