Documentation review

[xavierfoucrier]

Update the documentation according to the latest bug fixes and improvements:

• fix(core): 🐛 fix data-barba-history="replace" attribute 8e38a8f
• Page refreshed after timeout instead of redirected #475
• Transition is broken when using sync mode and popstate events #559
• Pass the trigger event through hooks #622
• Add custom data to barba.history #630
• Check if link has been prefetched successfully #568
• First page load is not cached, but could be fetched automatically in background #602
• Add support for custom XHR headers #655
• Allow programmatic barba.history management #601
• Limit the number of prefetched links #708
• 301 redirection doesn't update browser url #510
• Popstate events doesn't trigger transition correctly with query string #587
• Improve the way prefetched URLs are stored in the cache #641
• The data-barba-prevent attribute doesn't work on a self transition #700
• Add setting to cache rendered HTML #713

[xavierfoucrier]

After a deep dive into the documentation, everything has been reviewed and updated according to the latest bug fixes and improvements 🔥

We can always make things better, that's why if you found a typo or issue with the documentation, feel free to open a Github issue or a pull request that target the website-2.x branch ✌️😉