Minor updates and exercise unlock.

[xavierlepretre]

This PR adds minor changes and unlocks the exercise of the week.

R1: Internal review (B9lab)

• Technical review
  • [ ] requested
  • [ ] completed
• Language review
  • [ ] requested
  • [ ] completed

R2: External review

• Technical review
  • [ ] requested
  • [ ] completed
• Language review
  • [ ] requested
  • [ ] completed

R3: Internal QA review (B9lab)

• Technical review
  • [ ] requested
  • [ ] completed
• Language review
  • [ ] requested
  • [ ] completed

R4: Final external QA review

• Technical review
  • [ ] requested
  • [ ] completed
• Language review
  • [ ] requested
  • [ ] completed

RC: Release Candidate

• [ ] Ready to be merged

[netlify[bot]]

✅ Deploy Preview for cosmos-developer-portal ready!

Name	Link
🔨 Latest commit	0121dbffd57469e239d9f4be1c7cc465c53a7fd4
🔍 Latest deploy log	https://app.netlify.com/sites/cosmos-developer-portal/deploys/6571f72c4fd92b0008d032b4
😎 Deploy Preview	https://deploy-preview-71--cosmos-developer-portal.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[netlify[bot]]

✅ Deploy Preview for cosmos-ida-portal ready!

Name	Link
🔨 Latest commit	0121dbffd57469e239d9f4be1c7cc465c53a7fd4
🔍 Latest deploy log	https://app.netlify.com/sites/cosmos-ida-portal/deploys/6571f72c8c99b00008fed05e
😎 Deploy Preview	https://deploy-preview-71--cosmos-ida-portal.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.