Updated changelog for 1.2p1

Author: RodZill4

CHANGELOG.md

@@ -3,7 +3,8 @@
 # New features
 
 - Added Unreal Engine 5 export targets that generate a Python script for UE5 to
-  build automatically the generated material
+  build automatically the generated material (it's necessary to setup a path for
+  Python in UE, this is described in the documentation)
 
 # Bug Fixes
 
@@ -12,6 +13,8 @@
 - Fixed a problem in the Tones Map node that could cause incorrect shader code generation
 - Fixed a problem in the animation export tool that occurred when exporting graphs with buffers
 - Fixed Histogram panel (not updating correctly) and improved histogram rendering
+- Updated the Math nodes to improve parameters consistency (contributed by williamchange)
+- Fixed a bug that caused Material Maker to crash when entering an expression as parameter in the Text node
 
 # Material Maker 1.2