Add the Digital Accessibility Toolkit

[shawnthompson]

I'd like to add the gc-da11yn/gc-da11yn.github.io: Digital Accessibility Toolkit to your list of open source projects.

[smellems]

Did you try adding it here? (I just reset the bot) - https://code.open.canada.ca/en/open-source-code-form.html

It should create a Pull request for you