Add chatbot section to guide

[lukefretwell]

Per Nira's question:

Do you know if there are any standards on accessibility + chatbot interfaces (e.g. BotCopy, FB messenger etc.)? For example, I notice screen-readers don't pick up a chatbot widget that floats on top of a webpage. I'm curious how we'd address accessibility as part of these platforms, especially since there is so much interest in creating conversational interfaces.

References from Slack responses:

• https://github.com/microsoft/BotFramework-WebChat
• https://a11y-guidelines.orange.com/en/web/components-examples/chatbot/
• https://github.com/Orange-OpenSource/a11y-guidelines
• https://uxdesign.cc/we-need-to-talk-about-accessibility-on-chatbots-98cf93c54963

Quick search:

• https://digital.gov/topics/chatbots/
• https://snatchbot.me/government
• https://www.boost.ai/conversational-ai-public-sector
• https://jasoren.com/chatbot-development-for-government/
• https://portal.arkansas.gov/pages/chat-bot/
• https://strategy.data.gov/proof-points/2019/06/07/usagov-uses-human-centered-design-to-roll-out-ai-chatbot/
• https://www.governing.com/next/Government-Wants-Some-Straight-Talk-About-Chatbots.html

[mgifford]

I wanted to add https://mitre.github.io/chatbot-accessibility-playbook/docs/4_3.html to this list.

and also https://www.craigabbott.co.uk/blog/web-chat-accessibility-considerations/
https://danny-payne.scribe.rip/accessibility-options-for-floating-action-buttons-99bdf8146988

Also, high time we consolidate this into a page for our site.