Auto merge of #50898 - shepmaster:typo, r=QuietMisdreavus
Auto merge of #50898 - shepmaster:typo, r=QuietMisdreavus

UnsafeCell doc typos and minor flow improvements

r? @QuietMisdreavus

graydon/rust,GBGamer/rust,graydon/rust,GBGamer/rust,GBGamer/rust,GBGamer/rust,aidancully/rust,graydon/rust,aidancully/rust,GBGamer/rust,graydon/rust,aidancully/rust,GBGamer/rust,aidancully/rust,GBGamer/rust,graydon/rust,aidancully/rust,aidancully/rust,graydon/rust,GBGamer/rust