Delete gh-pages site.

[Layzie]

When googling JavaScript garden, Google shows source site and your site.

This make confuse. So delete this site is better, I think.

[shamansir]

@Layzie Hi from the future. This site is the official Russian translation and usually referred in the Russian segment using this link. Also, times changed, Google have smarter algorithms, so probably it's not the second result anymore, or at least depends on who's searching. If we could get a redirect from my site to the official page, that would be a better solution, I suppose.

Or, here in 2017, I could update my version with the new changes from the official one.

[shamansir]

Sorry again, I came to a better solution, just to put a suggestion to visit (and contribute to) the original site from gh-pages branch. That's a pity I've discovered this issue only now. Thank you.

[shamansir]

We need to merge this PR (^) before, since this version has a lot of stylistic improvement over the one used at the official site. Then, I may use this disclaimer to replace "my" version of the site: https://github.com/shamansir/JavaScript-Garden/blob/update-gh-pages/index.html