docs: Add Python version flag to uvx instructions

[Aaron ("AJ") Steers (aaronsteers)]

docs: Add Python version flag to uvx instructions

Summary

Updates the README's uvx command to include the -p 3.13 flag, ensuring users run the application with Python 3.13 as required by the project. Adds a note explaining why the Python version flag is needed.

This documentation update aligns with the recently merged PR #44 which enabled uvx support for running the application directly from GitHub.

Review & Testing Checklist for Human

• Verify the uvx command works: Run uvx -p 3.13 --from git+https://github.com/airbytehq/agentic-connector-builder-webapp agentic-connector-builder-webapp from a clean directory and confirm the app starts successfully
• Confirm Python version requirement: Verify that Python 3.13 is indeed required (check pyproject.toml requires-python field)

Notes

• This is a minimal documentation update to improve the quick start instructions
• The -p 3.13 flag ensures uvx uses Python 3.13, which is required per pyproject.toml
• No code changes, only documentation

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Requested by: AJ Steers (Aaron ("AJ") Steers (@aaronsteers))
Devin session: https://app.devin.ai/sessions/c76714d123fd462bbc34ad4817159623

Summary by CodeRabbit

• Documentation
  • Quick Start updated to specify Python 3.13 in the uvx installation command. Example: uvx --python=3.13 --from git+https://github.com/airbytehq/agentic-connector-builder-webapp agentic-connector-builder-webapp.

[devin-ai-integration]

Original prompt from AJ Steers

@Devin - Can you give me a uvx command to run the agentic connector builder webapp from main branch?
Thread URL: https://airbytehq-team.slack.com/archives/D089P0UPVT4/p1762298143001619

[devin-ai-integration]

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[coderabbitai]

📝 Walkthrough

Walkthrough

Updated README.md Quick Start to change the uvx install command to include an explicit Python version flag (--python=3.13) and a clarifying note about requiring that flag for Python 3.13 compatibility.

Changes

Cohort / File(s)	Summary
Documentation updates README.md	Replaced uvx Quick Start command to specify Python version: uvx --python=3.13 --from git+https://github.com/airbytehq/agentic-connector-builder-webapp agentic-connector-builder-webapp; added clarification about needing the flag for Python 3.13 compatibility.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2–3 minutes

• Review focus: README.md change correctness (flag syntax and wording).

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch devin/1762372957-add-uvx-docs

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📜 Recent review details

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Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between c150120 and e7c38c6.

📒 Files selected for processing (1)

• README.md (1 hunks)

🚧 Files skipped from review as they are similar to previous changes (1)

• README.md

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[Copilot]

Pull Request Overview

This PR updates the README documentation to specify Python 3.13 when running the application via uvx, ensuring users run with the correct Python version required by the project.

• Adds the -p 3.13 flag to the uvx command
• Includes an explanatory note about the Python version requirement

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