🐛 👷 Fix path bug in action

Author: brianary

.github/workflows/jekyll-gh-pages.yml

@@ -35,7 +35,7 @@ jobs:
         shell: pwsh
         run: |
           Install-Module SqlServer -Repository PSGallery -Scope CurrentUser -Force
-          $env:Path += ";$PWD"
+          $env:Path += [io.path]::PathSeparator + "$PWD"
           ./Export-Readme.ps1
       - name: Build with Jekyll
         uses: actions/jekyll-build-pages@v1