SQL Server via Docker

[bricelam]

For Linux/macOS users or Windows users without Visual Studio, it's actually failry trivial to use SQL Server instead of SQLite if they have Docker installed:

docker run -e ACCEPT_EULA=Y -e SA_PASSWORD=Password12! -p 1433:1433 -d mcr.microsoft.com/mssql/server

Use this conneciton string:

"DefaultConnection": "User ID=sa;Password=Password12!;Database=ConferencePlanner"