Release History can't be found by users in docs

[joaquintides]

The following page:

https://www.boost.org/libs/filesystem/doc/release_history.html

does not seem to be linked anywhere from the docs:

https://www.boost.org/libs/filesystem

which prevents users from easily accessing it. See this ML post for more context.

[Lastique]

The page is reachable through the "Releases" link in the top header on every page of Filesystem docs.