add screenshots of the app on github and site

[pixelr0]

add screenshots of the app on github and site

i had to google to see how merkaartor app looks like

[matkoniecz]

I wanted to create issue like this after encountering https://news.ycombinator.com/item?id=25914626

[Krakonos]

Sure. Anyone up to making some nice screenshots? I'll update the github and website.

[zander]

For each point there are crosses drawn by default, which clutters things at lower zoom. Is that easy to turn off?

[zander]

[Krakonos]

The crosses are virtual nodes. Can be easily turned off in main menu -> show -> virtual nodes