Add Project URLs + Update Documentation Header

[hunter-ni]

What does this Pull Request accomplish?

• Adds links to this repository and the corresponding documentation to the project.urls section of pyproject.toml.
• Updates the main documentation header for clarity

Why should this Pull Request be merged?

• Discoverability and clarity of the associated online documentation

What testing has been done?

• Built the documentation locally to verify the header change

[Copilot]

Pull request overview

This PR enhances project discoverability by adding structured project URLs to pyproject.toml and updating the documentation header to better reflect the project's purpose. The changes make it easier for users to find the repository and documentation from package listings like PyPI.

• Adds [project.urls] section with repository and documentation links
• Updates documentation header from "Protobuf Types for NI Data Store gRPC APIs" to "Measurement Data Store Python API" for improved clarity

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
pyproject.toml	Adds project.urls section with repository and documentation URLs
docs/index.rst	Updates main documentation header to use clearer, more user-friendly title

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