Updated reamde and package json for v2.2.1

Author: jamie-healey-xr

README.md

@@ -16,10 +16,16 @@ The Http instance will run the WebRequest coroutines for you so you dont have to
 * C# 7
 
 ## Installation
-It's recommended that you submodule this repo to your Assets directory using:  
-`git submodule add [email protected]:dubit/unity-http.git Assets/DUCK/Http`  
 
-This package is also part of <b>D</b>ubit <b>U</b>nity <b>C</b>omponent <b>K</b>it (<b>DUCK</b>) and can be installed via the [DUCK Package Manager](https://github.com/dubit/duck-package-manager). 
+Add it as a package using [Unity Package Manager](https://docs.unity3d.com/Manual/upm-git.html) or via submodule:  
+`git submodule add [email protected]:dubit/unity-http.git Assets/Duck/Http`
+
+## Releasing
+* Use [gitflow](https://nvie.com/posts/a-successful-git-branching-model/)
+* Create a release branch for the release
+* On that branch, bump version number in package json file, any other business (docs/readme updates)
+* Merge to master via pull request and tag the merge commit on master.
+* Merge back to development.#
 
 ## How to use it.
 If you are using an AssemblyDefinition then reference the Http Assembly.  

package.json

@@ -0,0 +1,11 @@
+{
+  "name": "com.dubitlimited.duck.unity-http",
+  "displayName": "Unity Http",
+  "version": "2.2.1",
+  "description": "An improved API for making http requests in unity",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/dubit/unity-http"
+  },
+  "author": "Dubit Limited"
+}