chore: update README.md of zenml-support-agent to correct installation path

[jadelapuente]

Problem
Running the installation command from zenml-support-agent fails.

$ pip install -r src/requirements.txt
Defaulting to user installation because normal site-packages is not writeable
ERROR: Could not open requirements file: [Errno 2] No such file or directory: 'src/requirements.txt'

This is because requirements is in the root directory and there is no src subdirectory.

Solution
Remove src/ from the path.

Alternative
Create src directory, but I chose not to because all other directories except 1 have this file structure.

[dagshub]

Join the discussion on DagsHub!

[Copilot]

Pull Request Overview

This PR updates the README.md file in the zenml-support-agent repository to correct the installation path for the requirements file.

• Removed the incorrect "src/" prefix from the pip install command.
• Clarified the installation instructions to reflect the actual file structure.

[strickvl]

You're totally right! Thanks for the contribution!