CONTRIBUTING.md in sanitize_email-2.0.7 vs CONTRIBUTING.md in sanitize_email-2.0.8

- old
+ new
@@ -29,9 +29,10 @@
 7. Run `git pull origin main` to ensure you will release the latest trunk code.
 8. Set `SOURCE_DATE_EPOCH` so `rake build` and `rake release` use same timestamp, and generate same checksums
    a. Run `export SOURCE_DATE_EPOCH=$EPOCHSECONDS && echo $SOURCE_DATE_EPOCH`
    b. If the echo above has no output, then it didn't work.
    c. Note that you'll need the `zsh/datetime` module, if running `zsh`.
+   d. In `bash` you can use `date +%s` instead, i.e. `export SOURCE_DATE_EPOCH=$(date +%s) && echo $SOURCE_DATE_EPOCH`
 9. Run `bundle exec rake build`
 10. Run [`bin/checksums`][🔒️rubygems-checksums-pr] to create SHA-256 and SHA-512 checksums
     a. Checksums will be committed automatically by the script, but not pushed
 11. 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]