Clean_WikiContent_For_GitHub_Publish: Fix parsing top level header

[johlju]

Pull Request (PR) description

• The task will convert standard hyphens to spaces and Unicode hyphens to standard hyphens before comparison.

This Pull Request (PR) fixes the following issues

• Fixes Clean_WikiContent_For_GitHub_Publish: Update task to handle top header with spaces #160

Task list

• Added an entry to the change log under the Unreleased section of the file CHANGELOG.md.
  Entry should say what was changed and how that affects users (if applicable), and
  reference the issue being resolved (if applicable).
• Documentation added/updated in README.md.
• Comment-based help added/updated.
• Localization strings added/updated in all localization files as appropriate.
• Examples appropriately added/updated.
• Unit tests added/updated. See DSC Community Testing Guidelines.
• Integration tests added/updated (where possible). See DSC Community Testing Guidelines.
• New/changed code adheres to DSC Community Style Guidelines.

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This change is 

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94%. Comparing base (02e340b) to head (86db775).
Report is 2 commits behind head on main.

Additional details and impacted files

@@         Coverage Diff         @@
##           main   #164   +/-   ##
===================================
  Coverage    94%    94%           
===================================
  Files        70     70           
  Lines      1324   1325    +1     
===================================
+ Hits       1247   1251    +4     
+ Misses       77     74    -3     

Files with missing lines	Coverage Δ
...sks/Clean_WikiContent_For_GitHub_Publish.build.ps1	81% <100%> (+10%)	⬆️

[johlju]

Reviewed 3 of 3 files at r1, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @johlju)