(#9) Update Readme with build and package badges

Author: colinangusmackay

README.md

@@ -2,7 +2,9 @@
 
 A configuration provider that uses SQL Server as its backing store.
 
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+* [![Stravaig Configuration SQL Server Provider](https://github.com/Stravaig-Projects/Stravaig.Configuration.SqlServer/actions/workflows/build.yml/badge.svg)](https://github.com/Stravaig-Projects/Stravaig.Configuration.SqlServer/actions/workflows/build.yml)
+* ![Nuget](https://img.shields.io/nuget/v/Stravaig.Configuration.SqlServer?color=004880&label=nuget%20stable&logo=nuget) [View on NuGet](https://www.nuget.org/packages/Stravaig.Configuration.SqlServer)
+* ![Nuget (with prereleases)](https://img.shields.io/nuget/vpre/Stravaig.Configuration.SqlServer?color=ffffff&label=nuget%20latest&logo=nuget) [View on NuGet](https://www.nuget.org/packages/Stravaig.ConfigurationSqlServer)
 
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