Update changelog.txt spelling

Author: Wires77

changelog.txt

@@ -35,7 +35,7 @@ VERSION[0.11.0][2025/09/02]
 * Fix Lead Me Through Grace... parsing (Nostrademous)
 
 --- Fixed Bugs ---
-* Fix invalid authentification URL being opened (teroshan)
+* Fix invalid authentication URL being opened (teroshan)
 
 VERSION[0.10.2][2025/08/30]
 
@@ -676,4 +676,4 @@ A quick hit-list of things that ^1ARE NOT SUPPORTED ^7in this initial release:
         We still need to complete the process of fully removing the concept of
         skill gems being tied to item sockets that was in PoE1 to allow for this, we just ran out of time
 * Map Mods
-* Boss Skills
+* Boss Skills