This commit includes some general improvements to heading styles
(font-weight, margin/padding). It also adds a horizontal separator above
`<h2>` headings to segment important sections more easily.
(As a consequence, we can remove several `<hr />` elements right before
`<h2>` headings.)
Co-authored-by: Stefanie Fluin <sjtrimble@gmail.com>
PR Close#40427
PR #36601 itroduces icons on all links if the link contains https:// or http:// but there were some internal links left which contained https://angular.io. Removed https://angular.io from all these links.
PR Close#37157
Teri Glover
George Kalpakas
Ajit Singh
Kapunahele Wong
Judy Bogart