SLH to do before launching

[shawna-slh]

• [x] language-specific guidance
• [x] changelog - at least temporary solution for video page
• [x] process & doc in Translating WAI Resources
  • [maybe later] instructions for reviews (record in GitHub or e-mail)
• [x] priorities in Translating WAI Resources - fix categories (e.g., ee comments)
• [x] (just data entry) WAI TR translations into new database (check with Dom first) (Dom did)
• [x] (minor) inform of new WAI-translations list — status: checking with Dom & Comm before sending
  • [x] w3c translations list
  • [ ] offices/new thing
  • [x] wai-announce list (& thus wai-ig)
• [x] design listing translators & contributors on All WAI Translations page

(find this in the future: https://github.com/w3c/wai-website/blob/add-translations/translations.md ))