Replace readme with deprecation notice (#14)

* Replace readme with deprecation notice

* Add deprecated keyword, so Pursuit picks it up

* Update text to indicate merge happened.

Author: JordanMartinez

README.md

@@ -1,20 +1,6 @@
+# DEPRECATED
 
-# purescript-node-streams-aff
-
-[![Latest release](http://img.shields.io/github/release/purescript-node/purescript-node-streams-aff.svg)](https://github.com/purescript-node/purescript-node-streams-aff/releases)
-[![CI](https://github.com/purescript-node/purescript-node-streams-aff/workflows/CI/badge.svg?branch=main)](https://github.com/purescript-node/purescript-node-streams-aff/actions?query=workflow%3ACI+branch%3Amain)
-[![Pursuit](https://pursuit.purescript.org/packages/purescript-node-streams-aff/badge)](https://pursuit.purescript.org/packages/purescript-node-streams-aff)
-
-Asynchronous PureScript [`Aff`](https://pursuit.purescript.org/packages/purescript-aff) API for [*Node.js* Stream](https://nodejs.org/docs/latest/api/stream.html).
-
-## Installation
-
-```
-spago install node-streams-aff
-```
-
-## Documentation
-
-Module documentation is [published on Pursuit](http://pursuit.purescript.org/packages/purescript-node-streams-aff).
+`purescript-node-streams-aff` is deprecated. Functions and values from this library were merged as-is into the [`purescript-node-streams`](https://github.com/purescript/purescript-node-streams) library.
 
+The [original releases up to v5.0.0](https://github.com/purescript-deprecated/purescript-node-streams-aff/releases) of this library are still available and will work with compiler versions prior to PureScript v0.16.x.
 

bower.json

@@ -13,6 +13,9 @@
         "bower_components",
         "output"
     ],
+    "keywords": [
+        "pursuit-deprecated"
+    ],
     "dependencies": {
         "purescript-aff": "^v7.1.0",
         "purescript-arrays": "^v7.1.0",