Fancy example

[ivanPeshterskii]

Describe the issue or suggestion

I created a PR - 'Fancy example' branch 'fancy-example' to show some LINQ. I have added some changes in docs/core/docker/snippets/App/Program.cs and docs/csharp/tour-of-csharp/tutorials/snippets/ListCollection/list.cs in order to reduce the amount of code lines, using LINQ expression.

For me, using LINQ is more understandable and I want to show to power of lambda expressions.

[adegeo]

The PR was #53568

Hello @ivanPeshterskii

The source code in this repository is created to support the documentation. Is there a specific portion of an article where the code isn't explained well and needs these clarifications? We have other articles that talk about and show lambda expressions, it may not be useful to use in this case. But again, it comes down to what's being shown in the articles