Add basic readme

[robbevp]

Add basic readme.
Fix #302

Topics to cover

• Info about app (quick first draft - same as in API)
• Screenshots for a few views
• Deployment guide
• Info for local development
• Info for questions/bugs
• Known issues

[chvp]

@robbevp do you think you'll get around to adding screenshots soon? Once the currently open pull requests on all the projects are merged I'd like to do 1.0 releases on all the projects. I feel like the project is ready for the 1.0 label. (Or do you still see any glaring problems preventing a 1.0 release?)

I can look into it as well if you don't foresee having time to do this in the (semi-)near future.

[robbevp]

@robbevp do you think you'll get around to adding screenshots soon? Once the currently open pull requests on all the projects are merged I'd like to do 1.0 releases on all the projects. I feel like the project is ready for the 1.0 label. (Or do you still see any glaring problems preventing a 1.0 release?)

I can look into it as well if you don't foresee having time to do this in the (semi-)near future.

I'm not sure if I will have time to setup an environment to make screenshots with good artist images/album images. I'm still doubting whether we should go for one or two small artists/labels (but ask permission before) or go for really big artists.

Regarding 1.0 - I can't think of anything that is still missing.
Since the runner per location have a breaking change that needs api, web and api-client-js to match, it would be good to do merge those and then release 1.0

[chvp]

Regarding 1.0 - I can't think of anything that is still missing. Since the runner per location have a breaking change that needs api, web and api-client-js to match, it would be good to do merge those and then release 1.0

Yes, I was definitely going to wait for those.