[dev] surf man page

[hiro]

~/surf-0.6$ diff surf.1.old  surf.1
64c64
< Scrolls page upwards.
---
> Scrolls up.
67c67
< Scrolls page downwards.
---
> Scrolls down.
70c70
< Scroll up one whole page view.
---
> Scrolls up one page.
73c73
< Scroll down one whole page view.
---
> Scrolls down one page.
76c76
< Scroll horizontally to the right.
---
> Scrolls to the right.
79c79
< Scroll horizontally to the left.
---
> Scrolls to the left.