[3.12] Update titles and subtitles on landing page template (GH-116914) (#117020)

Update titles and subtitles on landing page template (GH-116914)

* Update titles and subtitles on landing page template

* address review from gvanrossum

* Edits from hugovk review

* Change word order back. Down the road we should split license and history
(cherry picked from commit c514a975abe35fa4604cd3541e2286168ef67d10)

Co-authored-by: Carol Willing <carolcode@willingconsulting.com>