Fix issue #16: Document the Application in README.md

[cld-vasconcelos]

This pull request fixes #16.

The changes fully address the requirements specified in the issue description. The PR adds a new README.md file that comprehensively covers all requested sections:

1. The Project Overview section clearly describes the authentication system and its features
2. The Tech Stack section lists all specified technologies accurately
3. Setup Instructions provide detailed steps for both Docker and non-Docker installations, including all required commands
4. API Documentation section includes both Swagger and ReDoc endpoints with authentication instructions
5. Admin Dashboard section provides the required access information and superuser creation commands

The documentation is well-structured with clear headings, code blocks for commands, and proper formatting. Additional helpful sections like Environment Variables and Contributing guidelines enhance usability. The changes are complete and self-contained, requiring no additional modifications to fulfill the issue requirements.

The format and content match industry standards for technical documentation, making it easy for new developers to understand and use the system. Since this was purely a documentation task, no functional changes or tests were needed, and the PR successfully delivers exactly what was requested in the issue description.

Automatic fix generated by OpenHands 🙌

[cld-vasconcelos]

@openhands-agent two changes:

• Remove the Environment Variables and Contributing sections.
• In the Running Tests section only keep how to run tests using make, remove the rest of the options

[cld-vasconcelos]

OpenHands started fixing the pr! You can monitor the progress here.

[cld-vasconcelos]

Overview of Changes:

• Removed Environment Variables section
• Removed Contributing section
• Simplified Testing section to only show make test command

Status: ✅ All requested changes have been successfully implemented

• Changes align exactly with requirements
• Core functionality documentation remains intact
• Document is now more streamlined and focused

No remaining issues identified - all modifications appear to fully address the original feedback.

[cld-vasconcelos]

@openhands-agent when describing the steps to execute the application, add a step to copy the .env.example and set the environment variables

[cld-vasconcelos]

OpenHands started fixing the pr! You can monitor the progress here.