Add Thai translation to website

[badgooooor]

I have translated the content in the website to Thai language. Please let me know if there are any other issue in this pull request.

[badgooooor]

Thanks for the reply. I have updated the remaining text in the website. I was a bit busy moving stuff from my university during weekday.

[WZot]

Just a small fix to the meta information on top and this translation should be good to go.