Add theme names to README theme section

[nombrekeff]

Hey there!

Is your feature request related to a problem? Please describe.
I just tried the themes, but I had to try every theme to get the one I liked.

Describe the solution you'd like
I would suggest adding the name of the theme next/on top of the image, so it's easier to know which image corresponds to what theme.

PD: I can do this if accepted.

[anuraghazra]

Hmmm i see yes. you can probably help it out :D thanks!

[nombrekeff]

Yeah sure, I will work something out later.

What do you think if we create another MD file containing a table with all available themes with preview and name? But leave some previews in the main readme.

[anuraghazra]

Yeah thats what i was exactly thinking

[nombrekeff]

Okay, I will do that then.

Do you prefer it if I create the new file in the root or inside the themes folder?

[nombrekeff]

Also, do you have screenshots for each theme? I can do them myself if not.

I thought about adding the preview itself, but thought it might consume quota each time people looked at the themes.

[anuraghazra]

@nombrekeff we can probably just use live previews, it won't matter too much.

[nombrekeff]

Okay, that will look cooler like this, and when/if we implement the custom cache max-age, we could add a long cache to that.

[nombrekeff]

This was added in #115