Add support for sections and custom introduction

[kirankumar-grootan]

Add support for the section just like bitnami readme generator where parameters can be broken down into sub-parameters using @section keyword
https://github.com/bitnami/charts/blob/main/bitnami/redis/README.md

This will be helpful to separate DB sections, common values sections etc

[Nepo26]

Hey @kirankumar-grootan. Great suggestion, this can make things be better and more modular.

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@Haepaxlog I'll look into your PR as soon as possible. If I see any problem, I'll ping you.

Hey there! Your PR looks promising, and I appreciate your contribution. I'll dive into it as soon as I can. If I come across anything that needs attention or have any questions, I'll be sure to reach out to you. Thanks again for your work on this!

[a-devops-guy]

Hi @Nepo26 May I know what help is needed to develop this feature. Let me see what I can do from my end.