Update userinfo docs

Signed-off-by: Michal Čihař <michal@cihar.com>
Add link to docs

Signed-off-by: Michal Čihař <michal@cihar.com>
Add SR Info docs

Signed-off-by: Michal Čihař <michal@cihar.com>
Ignore build files

Signed-off-by: Michal Čihař <michal@cihar.com>