fix: Wrong example heading under New Enemy Problem section

[Apoorve73]

Overview

New Enemy Problem section is referring to Zanzibar paper's snippet but the heading of Example B is shown in place of Example A

What's Expected?

Heading for the first example should be Example A: Neglecting ACL update order as referred in the Zanzibar paper here.

Since,this is just a typo, it won't require a lot of changes. Therefore, I would like to pick this issue and fix. Thanks!

[samkim]

Good catch! Please create a PR and I'll work with you to get it merged.

[Apoorve73]

Thanks @samkim ! Can you please review #224

[samkim]

Merged, thanks for the contribution!

[Apoorve73]

Glad to help 😄