Context:
Currently, we have two introduction pages - one is the homepage/landing page when clicking on the Optimize tab or changing the version and another one is the actual introduction page. Right now, the homepage does not contain any useful information. Hence, both pages should be merged and the content of introduction should be in the landing page.

AT:

• the Optimize docs landing page and introduction pages are merged into one page
• the landing page contains the content of the introduction page
• the introduction page is being removed
• all links and images are still working