message: Updating doc to reflect new badges added
diff: @@ -162,6 +162,17 @@ travis-ci = { repository = "...", branch = "master" }
  appveyor = { repository = "...", branch = "master", service = "github" }
  # GitLab: `repository` is required. `branch` is optional; default is `master`
  gitlab = { repository = "...", branch = "master" }
  +# Is it maintained resolution time: `repository` is required.
  +is-it-maintained-issue-resolution = { repository = "..." }
  +# Is it maintained percentage of open issues: `repository` is required.
  +is-it-maintained-open-issues = { repository = "..." }
  +# Codecov: `repository` is required. `branch` is optional; default is `master`
  +# `service` is optional; valid values are `github` (default), `bitbucket`, and
  +# `gitlab`.
  +codecov = { repository = "...", branch = "master", service = "github" }
  +# Coveralls: `repository` is required. `branch` is optional; default is `master`
  +# `service` is optional; valid values are `github` (default) and `bitbucket`.
  +coveralls = { repository = "...", branch = "master", service = "github" }
  ```
  The [crates.io](https://crates.io) registry will render the description, display
  