Rollup merge of #45264 - 0xAX:fix-typo-bootstrap-readm, r=kennytm
Rollup merge of #45264 - 0xAX:fix-typo-bootstrap-readm, r=kennytm

fix typo in src/bootstrap/README.md

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