Quick-Start will not run on Linux Mint

[barrybarney]

The quick-start app would not run on my linux box (Linux Mint 21.2). The first issue was that there is no image on docker hub tagged as 'latest' so the docker run command fails. I changed it to this:
container_id=$(docker run --rm --detach -p 8200:8200 -e 'VAULT_DEV_ROOT_TOKEN_ID=dev-only-token' vault:1.13.3)
I'm not sure if its a good idea to use a specific version tag but it worked.

The second issue is that the dotnet app calls for a specific version of the dotnet framework that is w..a..y out of date. Trying to install a deprecated dotnet framework was a rabbit hole I didn't want to go down. I changed the quickstart.csproj to this:
<TargetFramework>net7.0</TargetFramework>

After making those two changes the run script worked.