Fixed wrong comment in code snippet Indices And Ranges

[tymtam2]

Summary

Fixed wrong code comment introduced by #40607 in one of the snippets for Indices And Ranges.

dotnet run
==========          Starting Index and Range Samples.          ==========
          ==========          Last Index.            ==========
The last word is < tenth >.
          ==========          Range.                 ==========
< second >< third >< fourth >                                                                   <---- fixed this comment
          ==========          Last Range.            ==========
< ninth >< tenth >
          ==========          Partial Range.         ==========
< first >< second >< third >< fourth >< fifth >< sixth >< seventh >< eighth >< ninth >< tenth >
< first >< second >< third >< fourth >
< seventh >< eighth >< ninth >< tenth >
          ==========          Index and Range types. ==========
< eighth >
< second >< third >< fourth >

[tymtam2]

BTW. I created a PR with this fix right after the original #40607 was merged and I wondered why it's not being merged. Only today I looked at the PR and it was to main in my fork. Doh!

[BillWagner]

Thanks again @tymtam2

I'll now.