Update history.txt

megamek/docs/history.txt

@@ -42,6 +42,7 @@ MEGAMEK VERSION HISTORY:
 + PR #5762: Update artillery and bomb display with new graphics and revised/compacted logic
 + PR #5764: Save File Fix
 + PR #5765: Spelling, typos, etc.
++ Fix #4301: No Help Available: error reading readme.txt
 
 0.49.20 (2024-06-28 2100 UTC) (THIS IS THE LAST VERSION TO SUPPORT JAVA 11)
 + PR #5281, #5327, #5308, #5336, #5318, #5383, #5369, #5384, #5455, #5505, #5541: Code internals: preparatory work for supporting game types such as SBF, code cleanup for string drawing, superclass change for BoardView,