README Update

Author: Andrew Hoh

README.md

@@ -1,3 +1,33 @@
-# Contributing
+---
+services: cosmos-db
+platforms: dotnet
+author: anhoh
+---
 
-This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/). For more information see the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or contact [[email protected]](mailto:[email protected]) with any additional questions or comments.
+# Developing a .NET app using Azure Cosmos DB's MongoDB API
+Azure Cosmos DB is a globally distributed multi-model database. One of the supported APIs is the MongoDB API, which provides a document model and support for client drivers in many platforms. This sample shows you how to use the Azure Cosmos DB with the MongoDB API to store and access data from a .NET application.
+
+## Running this sample
+
+* Before you can run this sample, you must have the following prerequisites:
+
+   * An active Azure account. If you don't have one, you can sign up for a [free account](https://azure.microsoft.com/free/). Alternatively, you can use the [Azure Cosmos DB Emulator](https://azure.microsoft.com/documentation/articles/documentdb-nosql-local-emulator) for this tutorial.
+   * Visual Studio 2017 (download and use the free [Visual Studio 2017 Community Edition](https://www.visualstudio.com/downloads/))
+
+* Then, clone this repository using `git clone [email protected]:azure-samples/azure-cosmosdb-mongodb-dotnet-getting-started.git`.
+
+* Next, substitute the `username`, `host`, and `password` in *DAL / Dal.cs* with your Cosmos DB account's values. 
+
+* Install the *MongoDB.Driver* library from Visual Studio's Nuget Manager.
+
+* Click *CTRL + F5* to run your application.
+
+## About the code
+The code included in this sample is intended to get you quickly started with a .NET application that connects to Azure Cosmos DB with the MongoDB API.
+
+## More information
+
+- [Azure Cosmos DB](https://docs.microsoft.com/azure/cosmos-db/introduction)
+- [Azure Cosmos DB : MongoDB API](https://docs.microsoft.com/azure/documentdb/documentdb-protocol-mongodb)
+- [MongoDB .NET driver](https://docs.mongodb.com/ecosystem/drivers/csharp/)
+- [MongoDB .NET driver documentation](https://mongodb.github.io/mongo-csharp-driver/2.4/)