Fix typo in section 'Caching the Cargo home in CI'
Fix typo in section 'Caching the Cargo home in CI'

tsurai/cargo,tshepang/cargo,tshepang/cargo,rustyhorde/cargo,nipunn1313/cargo,rust-lang/cargo,vojtechkral/cargo,tshepang/cargo,eminence/cargo,rustyhorde/cargo,tshepang/cargo,rustyhorde/cargo,nipunn1313/cargo,eminence/cargo,rust-lang/cargo,vojtechkral/cargo,tsurai/cargo,tsurai/cargo,vojtechkral/cargo,rust-lang/cargo,nipunn1313/cargo,eminence/cargo,rustyhorde/cargo,vojtechkral/cargo,nipunn1313/cargo,eminence/cargo,tsurai/cargo,rust-lang/cargo,tsurai/cargo