[manifest] Clarified opening deep link (closes #301) (#302)

You can merge this Pull Request by running:

  git pull https://github.com/w3c/manifest deeplink

Or you can view, comment on it, or merge it online at:

  https://github.com/w3c/manifest/pull/302

-- Commit Summary --

  * Clarified opening deep link (closes #301)

-- File Changes --

    M index.html (10)

-- Patch Links --

https://github.com/w3c/manifest/pull/302.patch
https://github.com/w3c/manifest/pull/302.diff

---
Reply to this email directly or view it on GitHub:
https://github.com/w3c/manifest/pull/302