Auto merge of #41953 - Aaronepower:patch-1, r=brson
Auto merge of #41953 - Aaronepower:patch-1, r=brson

Updated releases notes for 1.18

This is my first time making the release notes so please give it an extra once over!

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