chore: add new meeting to readme

[jcstein]

Overview

[gemini-code-assist]

Summary of Changes

Hello @jcstein, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request updates the cips/README.md file to ensure the meeting schedule and associated resources are current. It includes an update to a recording link for a previously held meeting and adds a new upcoming meeting to the documentation, maintaining accurate and up-to-date information for the community.

Highlights

• Meeting 39 Recording Update: The recording link for meeting 39, held on September 30, 2025, has been updated to the correct YouTube URL.
• New Meeting Added: A new entry for meeting 40 has been added to the README, scheduled for October 14, 2025, including its agenda link.

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[gemini-code-assist]

Code Review

This pull request updates the meetings table in the README.md file. It adds a recording link for meeting #39 and adds a new entry for the upcoming meeting #40. The changes are correct, but there is a minor formatting inconsistency in the new table row that should be addressed for better source code readability.

[gemini-code-assist]

The formatting of the new table row is slightly inconsistent with the rest of the table. The Recording column is missing a space, which misaligns the column separator. To maintain source code readability and consistency, please add an extra space to align the table columns properly.

Suggested change

	| 40 | October 14, 2025 | [Agenda](https://github.com/celestiaorg/CIPs/issues/359) | TBD | TBD |
	| 40 | October 14, 2025 | [Agenda](https://github.com/celestiaorg/CIPs/issues/359) | TBD | TBD |