Here are several ways you can publish your HTML presentation:

1. Using Vercel (Recommended - Free & Easy)

1. Save the HTML file as index.html
2. Create a new folder and put the file inside
3. Go to vercel.com
4. Sign up/login and click "New Project"
5. Drag and drop your folder or connect via GitHub
6. Deploy - you'll get a live URL instantly

2. Using Netlify (Also Free)

1. Go to netlify.com
2. Sign up and drag your HTML file directly to the deploy area
3. Get an instant live URL

3. Using GitHub Pages (Free)

1. Create a GitHub repository
2. Upload your HTML file as index.html
3. Go to Settings → Pages
4. Enable GitHub Pages
5. Your site will be live at username.github.io/repository-name

4. Using the Download Feature Here

Since you're in v0, you can:

1. Click the "Download Code" button in the top-right corner
2. This will give you the files ready to deploy
3. Follow the deployment instructions provided

5. Quick Test Locally

To test before publishing:

1. Save the code as presentation.html
2. Double-click the file to open in your browser
3. Make sure everything works as expected

Recommendation: Use Vercel or Netlify for the easiest deployment. Both offer free hosting, custom domains, and automatic HTTPS. Just drag and drop your HTML file and you'll have a live presentation in seconds!

Would you like me to walk you through any of these options in more detail?