Minor changes in README
Minor changes in README

ianlet/rust-design-patterns,ianlet/rust-design-patterns,ianlet/rust-design-patterns,jdavis/rust-design-patterns,beni55/rust-design-patterns,beni55/rust-design-patterns,jdavis/rust-design-patterns,beni55/rust-design-patterns,jdavis/rust-design-patterns,jdavis/rust-design-patterns