Update the README

- Add coverage badge
- Remove old mentions of ZMQBuilder.jl and Windows issue
- Fix links

README.md

@@ -2,9 +2,9 @@
 
 *A Julia interface to ZeroMQ*
 
-| **Documentation**                                                         |
-|:-------------------------------------------------------------------------:|
-| [![][docs-stable-img]][docs-stable-url] [![][docs-dev-img]][docs-dev-url] |
+| **Documentation**                                                         | **Coverage**                    |
+|:-------------------------------------------------------------------------:|:-------------------------------:|
+| [![][docs-stable-img]][docs-stable-url] [![][docs-dev-img]][docs-dev-url] | [![][codecov-img]][codecov-url] |
 
 **ZMQ.jl** is a [Julia](http://julialang.org) interface to [ZeroMQ, The Intelligent Transport Layer](http://zeromq.org).
 
@@ -23,40 +23,30 @@ Or, equivalently, via the `Pkg` API:
 julia> import Pkg; Pkg.add("ZMQ")
 ```
 
-(This installs its own copy of the ZMQ libraries from the [ZMQBuilder](https://github.com/JuliaInterop/ZMQBuilder) repository.)
-
 ## Documentation
 
 - [**STABLE**][docs-stable-url] — **documentation of the most recently tagged version.**
 - [**DEVEL**][docs-dev-url] — *documentation of the in-development version.*
 
-## Troubleshooting
-
-If you are using Windows and get an error `Provider PackageManager failed to satisfy dependency zmq`, you may need to restart Julia and run `Pkg.build("ZMQ")` again. See [issue #69](https://github.com/JuliaLang/ZMQ.jl/issues/69) for more details.
-
 ## Questions and Contributions
 
-Usage questions can be posted on the [Julia Discourse forum][discourse-tag-url] under the `zmq` tag, in the #zmq channel of the [Julia Slack](https://julialang.org/community/) and/or in the [JuliaDocs Gitter chat room][gitter-url].
+Usage questions can be posted on the [Julia Discourse forum][discourse-tag-url]
+under the `zmq` tag, in the `#helpdesk` channel of the [Julia
+Slack](https://julialang.org/community/), or the `#helpdesk`/`#helpdesk
+(published)` stream of the [Julia Zulip](https://julialang.zulipchat.com/).
 
-Contributions are very welcome, as are feature requests and suggestions. Please open an [issue][issues-url] if you encounter any problems. The [contributing page][contrib-url] has a few guidelines that should be followed when opening pull requests and contributing code.
+Contributions are very welcome, as are feature requests and suggestions. Please
+open an [issue][issues-url] if you encounter any problems.
 
-[contrib-url]: https://juliadocs.github.io/Documenter.jl/latest/man/contributing/
 [discourse-tag-url]: https://discourse.julialang.org/tags/zmq
-[gitter-url]: https://gitter.im/juliadocs/users
 
 [docs-dev-img]: https://img.shields.io/badge/docs-dev-blue.svg
 [docs-dev-url]: https://juliainterop.github.io/ZMQ.jl/latest
 
 [docs-stable-img]: https://img.shields.io/badge/docs-stable-blue.svg
 [docs-stable-url]: https://juliainterop.github.io/ZMQ.jl/stable
 
-[travis-img]: https://api.travis-ci.org/JuliaInterop/ZMQ.jl.svg
-[travis-url]: https://travis-ci.org/JuliaInterop/ZMQ.jl
-
-[appveyor-img]: https://ci.appveyor.com/api/projects/status/u1d6dpovaptdqalh?svg=true
-[appveyor-url]: https://ci.appveyor.com/project/StevenGJohnson/zmq-jl
-
-[codecov-img]: https://codecov.io/gh/JuliaDocs/Documenter.jl/branch/master/graph/badge.svg
-[codecov-url]: https://codecov.io/gh/JuliaDocs/Documenter.jl
+[codecov-img]: https://codecov.io/gh/JuliaInterop/ZMQ.jl/graph/badge.svg?token=NMxuhZepAU
+[codecov-url]: https://codecov.io/gh/JuliaInterop/ZMQ.jl
 
-[issues-url]: https://github.com/JuliaDocs/Documenter.jl/issues
+[issues-url]: https://github.com/JuliaInterop/ZMQ.jl/issues