Microservices(kafka) Update Documentation for Reply Topics

[mkaufmaner]

I'm submitting a...

[ ] Regression 
[ ] Bug report
[ ] Feature request
[x] Documentation issue or request (new chapter/page)
[ ] Support request => Please do not submit support request here, instead post your question on Stack Overflow.

Current behavior

Microservices documentation for Kafka doesn't include updated changes for kafka reply partitions here nestjs/nest#5654

Expected behavior

Microservices documentation for Kafka should include recently updated changes for kafka reply partitions here nestjs/nest#5654

Minimal reproduction of the problem with instructions

N/A

What is the motivation / use case for changing the behavior?

Self-perpetuating.

Environment

For Tooling issues:
- Node version: N/A  
- Platform:  N/A 

Others:

See nestjs/nest#5654 and nestjs/nest#2984