Update release notes for Release Candidate 1
Update release notes for Release Candidate 1

PaulStoffregen/FastLED,corbinstreehouse/FastLED,remspoor/FastLED,tullo-x86/FastLED,FastLED/FastLED,neographophobic/FastLED,yaneexy/FastLED,remspoor/FastLED,wsilverio/FastLED,PaulStoffregen/FastLED,FastLED/FastLED,FastLED/FastLED,MiketheChap/FastLED,ryankenney/FastLED,wilhelmryan/FastLED,NicoHood/FastLED,MattDurr/FastLED,neographophobic/FastLED,FastLED/FastLED,yaneexy/FastLED,wilhelmryan/FastLED,kcouck/FastLED,MiketheChap/FastLED,felixLam/FastLED,ryankenney/FastLED,eshkrab/FastLED-esp32,liyanage/FastLED,wsilverio/FastLED,NicoHood/FastLED,liyanage/FastLED,tullo-x86/FastLED,corbinstreehouse/FastLED,PaulStoffregen/FastLED,kcouck/FastLED,eshkrab/FastLED-esp32,MattDurr/FastLED,felixLam/FastLED