Fix some typos in docs and error messages
Fix some typos in docs and error messages

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