Docs: zh tranlations.

[gogoend]

Translate some untranslated page ,and fix some wrong words or expressions.

[Mugen87]

Hint: You might want to scan the zh-docs for the TODO string. When I'm updating the English docs, I always try to update the structure of the Chinese pages but of course without the actual translation. I normally use TODO as a placeholder.

[gogoend]

Hint: You might want to scan the zh-docs for the TODO string. When I'm updating the English docs, I always try to update the structure of the Chinese pages but of course without the actual translation. I normally use TODO as a placeholder.

OK,got it~

[gogoend]

Besides,I found the link https://github.com/KhronosGroup/glTF/issues/9562 at Loading section in manual/en/introduction/Loading-3D-models (at line 100) is not available.

[Mugen87]

Oh, I think the link should be #9562. Can you please replace it in both versions (en, zh)?

[gogoend]

Oh, I think the link should be #9562. Can you please replace it in both versions (en, zh)?

With pleasure.

[mrdoob]

Thanks!