Could have pretty much just typed the title of your thread into google.
https://www.google.com/search?q=how+...utf-8&oe=utf-8

Oh shit dawg, first link is an official source with the exact information you're looking for and more! https://support.google.com/websearch.../1325808?hl=en

But seriously people, we live in a time where almost all information about anything ever is available, literally, at your fingertips. You wouldn't reinvent the wheel so why would you ask people to rewrite the instructions for building the wheel.