Add descriptions for Meeting Recordings

### Problem statement

Currently the Meeting Recordings are uploaded to YouTube with no description. Soon a link will be included to the relevant page on the website covered in each meeting. We should also look to expand upon what we are sharing.

### Proposed solution

Please come up with a summarizing paragraph for each session, to be included on YouTube as well as the dedicated webpage for Meeting Recordings. Maybe we create sub-pages with the recordings natively on the page (linked to YT). An expansion of this would be a simple list of instructions of how to follow along with the recorded session.

### Scope and impact

Let's create a system that is likely to support a wider reach for different users who join in the future, or those who may choose to go 'back to the beginning' to ensure understanding.

### Checks

- [x] I searched existing issues and discussions
- [x] This is a feature/enhancement request (not a question or doc issue)

Commencez par examiner les pages existantes de Meeting Recordings et les mises en ligne sur YouTube, bien que l’issue ne nomme aucun fichier ni point d’entrée. Définissez ce que chaque page de session doit contenir, notamment un résumé, un lien vers l’enregistrement et les éventuelles instructions pour suivre la session, puis confirmez que l’approche prend en charge les futurs enregistrements.

Rédigé par le modèle d'indexation à partir du texte de l'issue.