Add maintenance warning to README

Author: 2color

README.md

@@ -1,3 +1,12 @@
+## 🚧 This project is not actively maintained and is unsupported! 🚧
+
+It has reached viable PoC stage but is not being actively worked on or maintained. If you want to play around with libp2p, go ahead and try this project out. However:
+
+* There is little documentation and no support.
+* The libp2p version used in this project will not be actively updated.
+
+In other words: **DO NOT USE IN PRODUCTION**
+
 # libp2p Daemon
 
 [![](https://img.shields.io/badge/made%20by-Protocol%20Labs-blue.svg?style=flat-square)](http://protocol.ai)
@@ -11,16 +20,6 @@
   interact with the DHT, participate in pubsub, etc. no matter the language they are developed in,
   nor whether a native libp2p implementation exists in that language.
 
-
-## 🚧 This project is not actively maintained and is unsupported! 🚧
-
-It has reached viable PoC stage but is not being actively worked on or maintained. If you want to play around with libp2p, go ahead and try this project out. However:
-
-* There is little documentation and no support.
-* The libp2p version used in this project will not be actively updated.
-
-In other words: **DO NOT USE IN PRODUCTION**
-
 ## Install
 
 This repo uses [Go modules](https://github.com/golang/go/wiki/Modules). Note that go >=1.12 is required.