Translate more article to Chinese

[colin3dmax]

No description provided.

[colin3dmax]

Why I add webgl-tips.md into zh_cn dir, then run yarn watch-no-check

processing:  webgl/lessons/zh_cn/webgl2-whats-new.md
Wrote: out/webgl/lessons/zh_cn/webgl2-whats-new.html
---[
   link:[/webgl/lessons/webgl-tips.html] not found in English file
---[

...

no localization for category: reference in langinfo.hanson file for pt-br
---[ webgl/lessons/zh_cn/webgl-2-textures.md ]---
   link:[/webgl/lessons/webgl-tips.html] not found in English file
---[ webgl/lessons/zh_cn/webgl-2d-drawimage.md ]---
   link:[/webgl/lessons/webgl-tips.html] not found in English file

[colin3dmax]

I found the issue, solved.

Title: WebGL2 小贴士
Description: 使用 WebGL 时可能遇到的一些小问题
TOC: #  // I change # to 屏幕截图， then get the error