Feedback on Grav Theme

- Use Schema.org markup, eg. https://schema.org/Person
- Why is the title of some pages a `h2` tag? Titles of pages should be a `h1` tag, titles of sections should be a `h2` tag, titles of subsections should be a `h3` tag, etc
- Use the Open Graph protocol (http://ogp.me/) and Twitter cards (https://dev.twitter.com/cards/overview)
- Deploy TLS, use https://mozilla.github.io/server-side-tls/ssl-config-generator/, btw you shouldn't forget HSTS, and preferably preload it with https://hstspreload.org/
- When you've deployed TLS, you could also deploy HTTP/2 and Brotli
- Deploy security headers: `X-Frame-Options`, `X-XSS-Protection`, `X-Content-Type-Options`, and if you can, `Content-Security-Policy`
- Set the `lang` attribute of the `html` tag to `en`
- Set the `description` `meta` tag to something meaningful
- Make `.header` a `header` tag
- Make the `.project-nav` a `nav` tag (or set it's `role` attribute to `navigation`)
- Wrap the main content specific to a page in a `main` tag
- The contrast of the green and white colors of selected things is too low, see http://webaim.org/resources/contrastchecker/?fcolor=ffffff&bcolor=99cc99
- You toggle `.active` in the hamburger menu, but you don't toggle the relevant ARIA attribute: `aria-expanded`
- Make sure the website is fully browsable with just Tab and Enter
- A maximum width for the site wrapper doesn't look right at 4K, eg. Chrome's device toolbar is handy for testing that if you don't have a 4K screen
- Make the `alt` attribute of `img` tags tell what the image shows
- Why are project names a `p` tag? A name isn't a whole paragraph of text, so a `span` tag would be better or maybe a `strong` or a heading tag
- There's something wrong with the email link
- Set `aria-hidden` to `true` at `#nav-toggle` when it's hidden
- You're using multiple CDNs, you want to only use one, like cdnjs or jsDelivr