Update framework reference

[guardrex]

Purpose

@jmprieur ... Dan asked for a change in how ASP.NET Core is referred to in documentation. I request changing how this sample is titled to match what we're doing in the ASP.NET Core documentation repo.

Cross-reference: dotnet/AspNetCore.Docs#31773

Does this introduce a breaking change?

[ ] Yes
[x] No

Pull Request Type

What kind of change does this Pull Request introduce?

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[x] Documentation content changes
[ ] Other... Please describe:

How to Test

N/A

• Test the code

N/A

What to Check

N/A

Other Information

None