Update patch notes

patch_notes/v0.27.md

@@ -8,6 +8,7 @@
 - Added armor, health, ammo, and blockmap width to the brute force attribute list
 
 #### Bug Fixes
+- Fixed backspace from skill selection showing the episode menu when there is only one episode (e.g., in kdikdizd)
 - Fixed nightmare skill warning showing up for heretic / hexen skill 5
 - Fixed issue with reversing build mode in cl7-9
 - Fixed rare crash in line of sight check