Helping new users

Tracking issue for usability, helping out new users, making Gmsh features more discoverable.

We get a lot of repeated questions on the mailing list.

Maybe there are some things we can do to make the site more accessible.

Some ideas:

• Guided walkthrough programs for the API and geo files, in the style of blog posts.
• A Gmsh whirlwind tour, the reference manual is quite imposing for a newcomer.
• Go through the common mailing list issues (STL topography comes to mind) and make dedicated tutorials for them?

I know there's a lot going for the more technical issues, I'd be happy to try and help with these!

Please feel free to add your own ideas to the list.