Standardize README with shield badges about dotnet-sdk

[marcduiker]

@marcduiker - just noticed that some of links aren't working or included as intended. The twitter badge for example only contains the image url and navigates to the badge image when clicked. The others are: latest version, build and license

Thanks @mikeee! I'll update the issue, and re-open. You can use the formatted snippet in this issue @m3nax since I've updated that.

[m3nax]

/assign

[m3nax]

@marcduiker done

[marcduiker]

Thanks for adding the badges @m3nax!

Could you make another PR and add back the # Dapr SDK for .NET on the first line of the README, please? This has unintentionally been removed with your change :). See the diff: https://github.com/dapr/dotnet-sdk/pull/1284/files

[m3nax]

@marcduiker fixed

[marcduiker]

Thanks @m3nax !

[mikeee]

@marcduiker - just noticed that some of links aren't working or included as intended. The twitter badge for example only contains the image url and navigates to the badge image when clicked.
The others are: latest version, build and license

[m3nax]

Fixed build badge: