fixup! docs: add release-notes

Author: ziggie1984

docs/release-notes/release-notes-0.20.0.md

@@ -50,7 +50,7 @@
   status manager where we would have disabled a channel although it was already
   active in the switch. When a channel reconnects it starts a timer which might
   only trigger after the disable timer has already been triggered, so we had a
-  race condition where we would unnecessaraly mark a channel as disabled
+  race condition where we would unnecessarily mark a channel as disabled
   although it was active in the first place.
 
 # New Features