Help text updates

Signed-off-by: Illori <illori@simplemachines.org>
add ul styling back

Signed-off-by: Illori <illori@simplemachines.org>
fix ul styling for help popup

Signed-off-by: Illori <illori@simplemachines.org>
update $helptxt['edit_news']

Signed-off-by: Illori <illori@simplemachines.org>
more changes

Signed-off-by: Illori <illori@simplemachines.org>
and a few more

Signed-off-by: Illori <illori@simplemachines.org>
double spaces for single after a period.
Merge pull request #2083 from illori/helptext

Helptext updates