Update the Monster Chase readme to inform feedback.

[PatrickM727]

Monster Chase is the first Augmented Reality DApp functional today. Users can download from testflight today through this link. Monster Chase allows you to drop Monsters as Non-fungible token assets on the AION network.

You can then walk around you're area finding Monster through the AR environment and catch them.

It is built utilizing the Pocket Core MVP and AION Network mainnet.

If you are an early tester and want to give Product Feedback.

Please create an issue within this github repo utilizing the label "Product Feedback", write a concise description of the problem or idea. If you can add a screenshot that will be more helpful.

The issues will curate development backlog for the team to get to when time permits.

The Pocket Core team is now focused on delivering the Testnet release so non-trivial updates to Monster Chase may take additional time. Since the code is open source anyone who would like to contribute to feature adds or updates is welcome too.

[jeremybeal11]

We should also link to the developer portal as well as Discord. i will add this to my TODO list to get this README updated.