Issue:
docs(cypress): Update Cypress README Documentation



## Type of Change
<!-- Put an `x` in the boxes that apply -->

- [ ] Bugfix
- [ ] New feature
- [ ] Enhancement
- [ ] Refactoring
- [ ] Dependency updates
- [x] Documentation
- [ ] CI/CD

## Description

In this PR, I have updated the README file to include detailed information about Cypress test scenarios and the folder structure . 
    Added detailed instructions for adding new test scenarios to the ConnectorTest directory.
    Included a clear explanation of the folder structure, guiding contributors on where to find specific files and directories related to Cypress tests.
    Emphasized the importance of writing clear test scenarios using Cypress commands for effective testing.

By providing a descriptive title and detailed description, reviewers can quickly understand the purpose of the changes and ensure that the README file enhancements align with the project's goals and standards.



### Additional Changes

- [ ] This PR modifies the API contract
- [ ] This PR modifies the database schema
- [ ] This PR modifies application configuration/environment variables

<!--
Provide links to the files with corresponding changes.

Following are the paths where you can find config files:
1. `config`
2. `crates/router/src/configs`
3. `loadtest/config`
-->


## Motivation and Context

This update aims to improve the documentation for contributors and provide a clearer understanding of the testing approach.



## Checklist
<!-- Put an `x` in the boxes that apply -->

- [ ] I formatted the code `cargo +nightly fmt --all`
- [ ] I addressed lints thrown by `cargo clippy`
- [ ] I reviewed the submitted code
- [ ] I added unit tests for my changes where possible
- [ ] I added a [CHANGELOG](/CHANGELOG.md) entry if applicable


Resolution:
<think>
PR Context:
- Title: refactor(cypress): read creds from env instead of hardcoding the path 
- Merged: 2024-04-30T09:58:57Z
- Files changed: 30 files
- Commits: 18 commits

Implementation approach:
## Type of Change
<!-- Put an `x` in the boxes that apply -->

- [ ] Bugfix
- [ ] New feature
- [ ] Enhancement
- [x] Refactoring
- [ ] Dependency updates
- [ ] Documentation
- [x] CI/CD

## Description
<!-- Describe your changes in detail -->

- Beginning of Cypress refactor
- Removed the hardcoded `ConnectorAuthDetails` for reading it through env
- Code formatting
- Remove duplicated logger code for calling it through a function
- Documentation update is done at #4380

####
</think>

To implement this, you'll need to modify:


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