add to CHANGELOG

Author: Barisevrenugur

CHANGELOG.md

@@ -26,6 +26,7 @@ Most recent version numbers *should* follow the [Semantic Versioning](https://se
 - more informative error if optimization toolbox not present during NLLS R2* calculation
 - fix 3D-EPI B1 mapping not using b1defaults for Triotim scanner
 - use cell- instead of char- array to accommodate filenames of unequal length in RFsens
+- prevent missing B1 map for MTsat spamming the log
 
 ## [v0.6.1]
 ### Fixed