Align coverage inputs with Pester 6.1

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Author: MariusStorhaug

.github/actions/Get-PesterCodeCoverage/README.md

@@ -78,7 +78,11 @@ Summary:
 ## Requirements
 
 1. **Pester 6.1 Code Coverage Reports**
+
    Preceding steps must generate JSON coverage reports named `*-CodeCoverage*.json`
+   from the Pester 6.1 `CodeCoverage` result object. The action consumes
+   `CoveragePercent`, `CoveragePercentTarget`, `CommandsMissed`,
+   `CommandsExecuted`, and `FilesAnalyzed` plus their count properties.
 
 2. **GitHub CLI**
    The action uses `gh run download` to fetch artifacts from the current workflow run

.github/actions/Test-PSModule/action.yml

@@ -85,7 +85,7 @@ inputs:
     required: false
   CodeCoverage_OutputFormat:
     description: |
-      Format to use for code coverage report. Possible values: JaCoCo, CoverageGutters, Cobertura
+      Format to use for code coverage report. Possible values in Pester 6.1: JaCoCo or Cobertura.
     required: false
   CodeCoverage_OutputPath:
     description: |
@@ -113,7 +113,7 @@ inputs:
     required: false
   CodeCoverage_UseBreakpoints:
     description: |
-      EXPERIMENTAL: When false, use Profiler based tracer to do CodeCoverage instead of using breakpoints.
+      When false, use the profiler-based tracer instead of breakpoints for code coverage.
     required: false
   CodeCoverage_SingleHitBreakpoints:
     description: |