📝 Better release instructions

Author: pboling

CONTRIBUTING.md

@@ -33,7 +33,7 @@ See: [RubyGems Security Guide][🔒️rubygems-security-guide]
    - Note that you'll need the `zsh/datetime` module, if running `zsh`.
    - In `bash` you can use `date +%s` instead, i.e. `export SOURCE_DATE_EPOCH=$(date +%s) && echo $SOURCE_DATE_EPOCH`
 10. Run `bundle exec rake build`
-11. Run [`bin/checksums`][🔒️rubygems-checksums-pr] to create SHA-256 and SHA-512 checksums
+11. Run `bin/checksums` (more [context][🔒️rubygems-checksums-pr]) to create SHA-256 and SHA-512 checksums
     - Checksums will be committed automatically by the script, but not pushed
 12. Run `bundle exec rake release` which will create a git tag for the version,
     push git commits and tags, and push the `.gem` file to [rubygems.org][💎rubygems]