update CHANGELOG.md

Author: hacknus

CHANGELOG.md

@@ -10,7 +10,10 @@ All notable changes to the `Serial Monitor` crate will be documented in this fil
 * Releases are now linked to libssl 3.4.1 on linux (built on Ubuntu 22.04)
 * allow to plot only every n-th point (max points is 5000, if dataset is larger, it will reduce it by showing only every
  2nd point. if it is larger than 10000 only every 3rd point etc...)
-* Fixed the theme preference setting not being properly restored after restarting the application
+* Fixed the theme preference setting not being properly restored after restarting the application (
+ thanks [@Rahinx](https://github.com/Rahix))
+* Fixed bug where you couldn't change the color and label of columns (thanks [@Rahinx](https://github.com/Rahix))
+* Fixed bug where for a single column of data the graph would never show (thanks [@Rahinx](https://github.com/Rahix))
 
 ## 0.3.4