Update quick start guide

[ghost]

Simpler instructions with Cultivation. Thanks to Nazrin for writing.

[reflexit]

Should we keep both Cultivation method (recommended) and manual method (for advanced users)? Because not every user downloads Cultivation, some (including me) prefer configuring things manually.

[ghost]

Sure, I don't see why not. Feel free to propose something for the manual method and I'll put it there + add you as a co-author to the commit.

[reflexit]

The manual method is basically the Quick setup guide part in the current README. Perhaps we can clean it up a little bit and remove some obsolete information.

As a reference, my setup steps are:

1. Install java, mongodb, and a proxy daemon (I use mitmproxy).
2. Get grasscutter.jar and resources folder.
3. Start mongodb service if not already. On Windows the command is net start mongodb.
4. Run Grasscutter with java -jar grasscutter.jar.
5. Run proxy daemon and set system network proxy (see Connecting with the client part).
6. Install a certain client patch. Run the game as administrator (very important).

I've been following these steps since 3.3, and it still works now.

[KingRainbow44]

the word Genshin is a big no-no

[ghost]

the word Genshin is a big no-no

Uh, why?

Just mentioning the game by name doesn't infringe any intellectual "property" rights. It seems simpler to name it.

Also, Genshin is a Buddhist monk, not a game.