Refactor Scenario tests...

[zeahmed]

Issue: In Scenarios, there is a class named "Top5Scenarios"
Depending on how you count, there are either 2 or 4 scenarios.
It is recommended renaming the class.

---

Let's also review the names of the files and make sure they are descriptive.

[glebuk]

PR 52 closed this
#52

[m-a-i-n-g-i]

@glebuk
Just a quick heads up letting you know that landing this PR #52 just broke one of the links on the main README.md

• Go to the Examples section and try following the link sending you to the complete sample. Here's the markdown snippet.

## Examples

Here's an example of code to train a model to predict sentiment from text samples. (You can see the complete sample [here](https://github.com/dotnet/machinelearning/blob/master/test/Microsoft.ML.Tests/Scenarios/Scenario3_SentimentPrediction.cs)):

Cheers!