Translate README content into Thai

[unnawut]

The content in README is reallyyyyyy valuable. We should translate into Thai.

Feel free to take this issue and we can pick to do section by section.

[p16i]

IMHO, it would be good if we could have this section in Thai first.

https://github.com/codeforthailand/election-live#how-we-handled-100000-active-users-on-a-single-10mo-server

We can announce the time machine feature and link to this section, saying why we store and have this historical data.