Links to {issues, repo}

[jbenet]

It would be great to these links to each distribution:

• issues or bugs or report a bug or report an issue - which links to $repo/issues
• repo or repository which links to $repo for the distribution

The issues/bugs one is higher prio. Even in presence of repo, would still be important to have the link to issues. Many users will not know their way around github, or know to do "github repo page -> issues link", and instead we want to lead them to submitting issues + getting help asap.

---

We could have some text at the bottom or the top of the page describing that we use github for issues, with a link to https://guides.github.com/features/issues/. Maybe:

We use GitHub.com to host our code, track issues, and discuss solutions. If you're new to github, sign up for an account here and read about posting issues here. Then, to report problems with any of our distributions, click the "Report an Issue" link under the description.

These links could be added to the set "docs, changelog, all versions", and just make a second line.