More minor grammar fixes to the Simplified Chinese translation

[PermissionError]

DO NOT REMOVE THIS

Please make sure your pull request complies with these guidelines:

• • [x] Use same formatting
• • [x] Must test on PMMP
• • [x] PLEASE don't use the GitHub Web Editor
• • [x] Have a detailed title like "Fix players are being kicked randomly"

If you are translating, make sure you translation complies with these guidelines:

• • [x] File must be named lang_iso. ISO Codes for languages can be found here.
• • [x] PLEASE don't use Google Translate (or any other translators...)
• • [x] Translate messages but keep tags like {player} or {pin} the same
• • [x] Make a Pull Request named Translation for Language after you're finished

What does the PR change?

More minor grammar fixes to the Simplified Chinese translation

Extra Information