Provide documentation source.

Per [`community.bitwarden.com/t/39981/2`](https://community.bitwarden.com/t/contributing-to-the-documentation/39981/2?u=rokejulianlockhart), [^1] *most* documentation source is no longer available. The obvious regressions on Bitwarden's side are increased bureacracy for changes, since members of the public can no longer submit PRs for grammatical or syntactic errata. On a contributor's side, they can no longer track what they've already reported. On a user's side, they cannot link to versions of the documentation.

[^1]: [`community.bitwarden.com/t/89356`][1]

[1]: https://community.bitwarden.com/t/re-contributing-to-the-documentation/89356?u=rokejulianlockhart

Start by reading the two linked community discussions and inspecting the repository contents to determine where Bitwarden documentation is maintained. Define what source should be published, how contributors can submit corrections, and how users can link to versions; the work is done when those requirements are documented and an accessible source workflow exists.

Written by the indexing model from the issue text.