fix: Clarify that strands-agents-tools is community-driven package

[zastrowm]

Description

We've settled on community-driven as the wording for the package:

Strands Agents Tools is a community-driven project that provides a powerful set of tools for your agents to use. It bridges the gap between large language models and practical applications by offering ready-to-use tools for file operations, system execution, API interactions, mathematical operations, and more.

So update all references from "example" to "community-driven"

Type of Change

• Content update/revision

Motivation and Context

Our messaging was outdated - it pitched it as "example" which lead to user confusion

Areas Affected

Any where we reference the package as "example"

Screenshots

N/A

Checklist

• I have read the CONTRIBUTING document
• My changes follow the project's documentation style
• I have tested the documentation locally using mkdocs serve
• Links in the documentation are valid and working
• Images/diagrams are properly sized and formatted
• All new and existing tests pass

Additional Notes

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