Describe the bug:
When I try to install a skill from URL I get the following error message:

Error parsing SKILL.md: Invalid format:
Expected at least two '---' sections.

To Reproduce:
Steps to reproduce the behavior:

1. Open the Google AI Edge Gallery App
2. Click on Agent Skills
3. Click on Try it (requires downloaded model)
4. Click on Skills
5. Click on +
6. Select Load skill from URL
7. Enter https://raw.githubusercontent.com/google-ai-edge/gallery/refs/heads/main/skills/featured/restaurant-roulette/SKILL.md
8. Click Add
9. Click Agree
10. Error parsing SKILL.md: Invalid format: Expected at least two '---' sections.

Expected behavior:
The skill should install and load into the next chat. Either github repo link, github raw content link or github pages link should work, ideally all three options or document which option works best.

Screenshots:

Device & App Information (Please complete the following):

• Device: iPhone 15 Pro
• iOS Version: 16.3.1 (a)
• App Version: 1.0.2

Additional context:
I tried loading my text only custom skill through multiple entry point (repo, usercontent, pages) and nothing worked. I also tried on both my iPhone and Mac.