Documentation: Adding a separate v2 and a v3 API binding for C++
To draw the attention of the community to these.
- [shafreeck/cetcd](https://github.com/shafreeck/cetcd) - Supports v2
**C++ libraries**
+
- [edwardcapriolo/etcdcpp](https://github.com/edwardcapriolo/etcdcpp) - Supports v2
- [suryanathan/etcdcpp](https://github.com/suryanathan/etcdcpp) - Supports v2 (with waits)
+- [nokia/etcd-cpp-api](https://github.com/nokia/etcd-cpp-api) - Supports v2
+- [nokia/etcd-cpp-apiv3](https://github.com/nokia/etcd-cpp-apiv3)
**Clojure libraries**
