Fix for #2050 [DOC] Update Sample Application to demonstrate correct way to initialize Maps in MauiProgram.cs to support Maps on all platforms.

[mikelor]

Description of Change

Demonstrate the correct way to incorporate .Net Maui Maps for Windows into a multiplatform application.

The 2.0.1 Release of the Community Toolkit Maps component introduced a change that requires the #ifdef Windows directive when compiling a multiple platform application with Maps.

This can cause confusion for people trying to incorporate Maps into the application due to the fact that since Maui 8.0.10 now throws an exception on Windows when using the standard Maps component.

No prior tests for this sample code. This code is a sample.

Linked Issues

• Fixes #

  2050

  PR Checklist

• [X] Has a linked Issue, and the Issue has been approved(bug) or Championed (feature/proposal)
• [ ] Has tests (if omitted, state reason in description)
• [ ] Has samples (if omitted, state reason in description)
• [X] Rebased on top of main at time of PR
• [X] Changes adhere to coding standard

• [X] Documentation created or updated: https://github.com/MicrosoftDocs/CommunityToolkit/pulls

  Additional information

  Modified ReadMe.txt to illustrate proper way instantiate .Net Maui Maps when using CommunityToolk.Maui.Maps

  Tested on Android API 35 (requires Google API Key) - New Requirement Tested on Windows 11

Did not test on iOS or Mac Catalyst

[mikelor]

@bijington the ReadMe.Txt modified in this PR is specific to the Maps assembly. See the current version here

I'd be happy to take a look at the XML docs and add an explanation there as well. Here's what was in the Release Notes for the 2.01 Version that caused my frustration. If the sample was updated or it was in the XML docs for the method, I may have resolved my issue earlier. LoL.

[bijington]

That'll teach me for reviewing the changes on my phone and missing that detail. Apologies for that.

That would be brilliant if you could. Thank you

[mikelor]

Ok @bijington, when you get a chance take a look. I added some example code to the XML docs. They generated just fine.