[docs] Enhance documentation with Quick Start Guide and Detailed System Requirements

[AleksZimin]

Description

This PR enriches our documentation by introducing a 'Quick Start' section, designed to help new users easily get up and running with our solution. We have also expanded the 'System Requirements and Recommendations' section, providing users with a comprehensive understanding of the hardware and software prerequisites for optimal performance.

Why do we need it, and what problem does it solve?

User Onboarding: The 'Quick Start' section significantly lowers the entry barrier for new users, offering step-by-step guidance for setting up our solution quickly.
Informed Setup: By detailing system requirements and recommendations more thoroughly, users can prepare their environment more effectively, ensuring compatibility and optimal performance.

What is the expected result?

• Users, especially those new to our solution, will find it easier to start using our product, thanks to clear, straightforward setup instructions.
• The detailed system requirements will help users configure their systems appropriately, leading to better performance and fewer issues down the line.
• Overall, these documentation improvements will contribute to a smoother onboarding experience and greater satisfaction among our user base.

Checklist

• The code is covered by unit tests.
• e2e tests passed.
• Documentation updated according to the changes.
• Changes were tested in the Kubernetes cluster manually.

[kirkonru]

Did some minor edits, mostly to get rid of a typo we discussed in the Slack thread.