Update README.md

Author: lvangdm1

README.md

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-# JDLinkMachineDataAPI-OAuth2-CSharp-Example
+
+# Welcome to the JDLink Machine Data CSharp Example. 
+  
+This project gives a full native CSharp example of:
+ * Getting a OAuth2 access token
+ * Call the JDLink Machine Data APIs with your access token  
+ * Edit Settings  
+     
+## Requirements  
+* ASP.NET Core (Current Version: 3.1)
+* Installed NuGet Packages:
+   * Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilation Version="3.0.0"
+   * Microsoft.Extensions.Logging.Debug Version="3.0.0" 
+   * Microsoft.VisualStudio.Web.CodeGeneration.Design Version="3.0.0"
+   * Newtonsoft.Json Version="12.0.3"
+* A free port 9090 (you can change port in: Project Properties-Debug-then App URL).
+* The callback for your application needs to be configured for the URL of this app:
+	* In developer.deere.com, add [http://localhost:9090/callback](http://localhost:9090/callback) as one of the callbacks within OAuth Profile (you can have more than one).
+	* It is NOT recommended to keep this around for production use.
+	* You use other ports/URLs and will also needs to be registered in [https://developer.deere.com](https://developer.deere.com/). (Please allow up to 20 minutes for any changes to be replicated).
+  
+## Edit Settings 
+* Once in the browser you will need a few things (Alternative option: update appsettings.json file directly) 
+  * A ClientId and Secret from your application on https://developer.deere.com
+* Add Scopes
+  * Insert scopes, for example org1 org2. Can also be found under JDLink Machine Data API Documentation section within [https://developer.deere.com](https://developer.deere.com/) for each endpoint.
+
+## How to start this project  
+* Clone this repository:  
+  * ```git clone [email protected]:JohnDeere/JDLinkMachineDataAPI-OAuth2-CSharp-Example.git```  
+* Build the project  
+  * ```Build Solution```  
+* Start it  
+  * ```Run IIS Express```