Improve notifier docs.

Signed-off-by: crynobone <crynobone@gmail.com>
Improve auth component docs.

Signed-off-by: crynobone <crynobone@gmail.com>
Basic avatar component doc.

Signed-off-by: crynobone <crynobone@gmail.com>
Merge branch '2.1' into 2.2

Signed-off-by: crynobone <crynobone@gmail.com>

Conflicts:
	src/components/auth/index.md
	src/components/notifier/index.md