Update Readme for (arguably) better readability
Update Readme for (arguably) better readability

Move final instruction to run clippy into a third step in the Readme so it's easier to spot at a quick glance.
graydon/rust,graydon/rust,aidancully/rust,aidancully/rust,graydon/rust,aidancully/rust,graydon/rust,graydon/rust,graydon/rust,aidancully/rust,aidancully/rust,aidancully/rust