add g0v-only.svg and url

Signed-off-by: Lee <jessy1092@gmail.com>
watch img as well
add g0v logo and url in the legend.

Signed-off-by: Lee <jessy1092@gmail.com>
- modify the url's position and size.
- Add the g0v-s.png.

Signed-off-by: Lee <jessy1092@gmail.com>
Merge Master. Auto deploy setting
<Auto Generated by Git>
Merge pull request #13 from g0v/addlogo

Add g0v Logo in the legend