added detailed blurbs for videos on Creative Commons resources

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Fixes

Fixes #63 by @Aaishpra

Description

Added concise description text to three resource markdown files that were missing it.

Technical Details

Descriptions were added in the same brief style as other resources.

Tests

Verified that the descriptions appear correctly on the relevant resource pages.

Screenshots

N/A

Checklist

• I have read and understood the Developer Certificate of Origin (DCO), below, which covers the contents of this pull request (PR).
• My pull request doesn't include code or content generated with AI.
• My pull request has a descriptive title (not a vague title like Update index.md).
• My pull request targets the default branch of the repository (main or master).
• My commit messages follow best practices.
• My code follows the established code style of the repository.
• I added or updated unit tests and/or test scripts for the changes I made (if applicable).
• I added or updated documentation (if applicable).
• I tried running the project locally and verified that there are no visible errors.

Developer Certificate of Origin

For the purposes of this DCO, "license" is equivalent to "license or public domain dedication," and "open source license" is equivalent to "open content license or public domain dedication."

Developer Certificate of Origin

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[Copilot]

Pull request overview

This PR adds descriptive text to three Creative Commons resource markdown files that were previously missing content descriptions below their front matter. The changes align with issue #63 and follow the existing pattern established by other resources in the repository.

Key changes:

• Added body descriptions to three video resource files that only had front matter metadata
• Descriptions provide brief explanations of the video content in the appropriate language

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
docs/_resources/les-licences-creative-commons.md	Added French description matching the resource's French language setting
docs/_resources/building-on-the-past.md	Added English description for the creativity-focused video resource
docs/_resources/a-shared-culture.md	Added English description expanding on the Creative Commons overview video

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[Copilot]

This description is nearly identical to the blurb field on line 14. Consider expanding the description to provide additional context or details beyond what's already in the blurb, such as explaining what specific aspects of creativity the video covers or mentioning key examples used in the video.

Suggested change

Video explaining how creativity always builds on the past.

This video explores how creativity is not an isolated act, but rather a process that draws upon previous ideas, works, and cultural influences. Through engaging visuals and examples, Justin Cone demonstrates how artists and creators remix, adapt, and build upon the work of others to create something new. The video highlights the importance of understanding and respecting the creative contributions of the past as a foundation for innovation.