Auto merge of #3837 - Turbo87:ops-guide, r=jtgeibel
Auto merge of #3837 - Turbo87:ops-guide, r=jtgeibel

Add `create-diff-link.sh` script

Replacement for https://github.com/rust-lang/crates.io/pull/3835 and symbiotic with https://github.com/rust-lang/crates-io-ops-guide/pull/4 :)

rust-lang/crates.io,rust-lang/crates.io,rust-lang/crates.io,rust-lang/crates.io