Auto merge of #7573 - mgeisler:patch-1, r=alexcrichton
Auto merge of #7573 - mgeisler:patch-1, r=alexcrichton

Use multiple requirement syntax consistently

It was never super clear to me how I would specify multiple requirements since the page uses a "meta syntax" in most of the examples and only mention the real syntax in a single sentence. Now all version requirements on the page follow the same syntax.

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