message: Update more libvcx related documentation
diff: @@ -60,7 +60,6 @@ Indy SDK provides libindy wrappers for the following programming languages and p
  [Libnullpay](/libnullpay/README.md) is a libindy plugin that can be used for development of applications that use the Payments API of Indy SDK.
  ### Libvcx
  -
  [Libvcx](/vcx/README.md) is a c-callable library built on top of libindy that provides a high-level
  credential exchange protocol. It simplifies creation of agent applications and provides
  better agent-2-agent interoperability for [Hyperledger Indy](https://www.hyperledger.org/projects/hyperledger-indy)
  @@ -83,16 +82,18 @@ These wrappers are currently in **experimental** state and it is not part of off
  ##### Example use
  - For the main workflow example check [VCX Python demo](https://github.com/hyperledger/indy-sdk/tree/master/vcx/wrappers/python3/demo).
  -- Another example workflow is available as [VCX NodeJS demo](https://github.com/hyperledger/indy-sdk/tree/master/vcx/wrappers/node#run-demo).
  -
  -### Dummy Cloud Agent
  -[Dummy Cloud Agent](/vcx/dummy-cloud-agent/README.md) is simple implementation of VCX compatible Cloud Agent.
  +- Another libvcx example is available as [VCX NodeJS demo](https://github.com/hyperledger/indy-sdk/tree/master/vcx/wrappers/node#run-demo).
  +- For mobile see [iOS Demo project](https://github.com/sktston/vcx-demo-ios)
  +
  +### LibVCX Agency
  +LibVCX can be used with
  +[mediator agency](https://github.com/hyperledger/aries-rfcs/blob/master/concepts/0046-mediators-and-relays/README.md)
  +which enables asynchronous communication between 2 parties.
  +- [Dummy Cloud Agent](/vcx/dummy-cloud-agent/README.md) is simple implementation of VCX compatible Cloud Agent.
  The main purpose of this implementation is VCX testing, demos and documentation of VCX protocol.
  -There is an parallel work on providing reference implementation of Agent2Agent protocol in indy-agent repo.
  -We plan to migrate to this protocol and implementation soon.
  +- [NodeVCXAgency](https://github.com/AbsaOSS/vcxagencynode) is alternative implementation in NodeJS.
  ## How-To Tutorials
  -
  Short, simple tutorials that demonstrate how to accomplish common tasks
  are also available. See the [docs/how-tos](docs/how-tos) folder.
  