Fix typo in code example
Fix typo in code example

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