Improve SEO: fix canonical URLs, og:image dimensions, add twitter:site, sitemap, and clean page titles#7

embarquech merged 3 commits into

maincryptnox/cryptnox.github.io:mainfrom

feature/improve_SEO_sphinx_documentationcryptnox/cryptnox.github.io:feature/improve_SEO_sphinx_documentationCopy head branch name to clipboard