Launch the Visual Studio 2019 and select "Create a New Project".
Select "Blazor GitHub Pages SPA" from the list of projects and click on the "Next" button.
"Configure your new project" dialog, enter "project name" and "solution name" and click the "Create" button.
In the solution name, enter the name of the repository you want to create on GitHub.
Once the project you created is loaded, select "Add to Source Control" from the "File" menu.
In the "Initialize Git repository" dialog, select "GitHub" and enter "Solution Name" in the "Repository Name" field.
When you click the "Initialize and Push" button, a repository is created on GitHub and the source code is pushed to the Master branch.
When you push your code to the master branch, GitHub Actions executes the build and pushes the build artifact to the "gh-pages" branch.
On your GitHub repository page, click on the Settings tab and check the GitHub Page section.
After selecting "master branch" in the "Source" field pull-down, select "gh-pages branch" again.
When you see "Your site is published at {URL}", click on the URL. This should take you to the Blazor Webassembly site you just created. (It will take a little while for the page to become accessible.)
