Add how documentation for how to create local db (#435)

README.md

@@ -8,6 +8,24 @@ This repository contains shared libraries used across the NuGet server repositor
 * NuGet.Services.Cursor
 * NuGet.Services.Storage
 
+## Getting started
+
+First install prerequisites:
+
+1. Visual Studio 2022 - Install the following [`Workloads`](https://docs.microsoft.com/visualstudio/install/modify-visual-studio) and individual components:
+    * Azure development
+
+The "Azure development" workload installs SQL Server Express LocalDB which is the database configured for local development.
+
+Now run the NuGet ServerCommon:
+
+1. Clone the repository with `git clone https://github.com/NuGet/ServerCommon.git`
+2. Navigate to `.\servercommon`
+3. Build with `.\build.ps1`
+4. Create the database:
+    Open Package Manager Console, set `NuGet.Services.Validation` as default project, then run `Update-Database`.
+5. Open `.\NuGet.Server.Common.sln` using Visual Studio
+
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