Hey @Aiyush-G 
Rather than trying to export the static HTML files you could use an automation deployment workflow using Netlify. By forking this repo, linking your Ghost installation and adding the repo to Netlify you can host static files in the same way you were on GitHub Pages, but the static files would be automatically redeployed whenever you make a change in your Ghost content with the use of webhooks.
Pro tip: You can use the “Deploy to Netlify” button in the readme of that repo to fast-track yourself to deploying your static site on Netlify
