Missing Nuget Package?

After adding Microsoft, I added Twitter authentication. It, however, wouldn't build because it was missing this package: Microsoft.AspNetCore.DataProtection.Abstractions

After adding that to the project it worked. I'm not sure why this isn't added automatically or at least documented above stating if you have more than one to add this.

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#### Document Details

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* ID: cb577d84-a06b-4d3e-a1c4-92c8a97a85aa
* Version Independent ID: 528fcbb8-5b0f-8340-743f-df612319a229
* Content: [Twitter external sign-in setup with ASP.NET Core](https://docs.microsoft.com/en-us/aspnet/core/security/authentication/social/twitter-logins?view=aspnetcore-3.1#feedback)
* Content Source: [aspnetcore/security/authentication/social/twitter-logins.md](https://github.com/aspnet/AspNetCore.Docs/blob/master/aspnetcore/security/authentication/social/twitter-logins.md)
* Product: **aspnet-core**
* Technology: **aspnetcore-security**
* GitHub Login: @Rick-Anderson
* Microsoft Alias: **riande**