💻 change links for translated content

[Felienne]

This idea came from @ZoomQuiet over email.

In order to better promote and discover the relevant copywriting and
activities of the Chinese hedy community,
I hope to configure the hedy Chinese community official website to use
the cn.hedy.org domain name for publication.

I think this is a great plan, it is shorter than https://hedy.org/hedy?lang=cn#default and it will also allow for nice deeplinking, like https://cn.hedy.org/for-teachers/manual for the Chinese version.

Should be relatively easy to implement, I think?

[ZoomQuiet]

Moreover, although using hostnames is simpler and easier to spread than using parameters in terms of URL,
we further envision using cn.hedy.org as the official Chinese community.
In addition to being able to directly publish all Chinese content on the official website,
we also hope to be able to publish information from each community on our own, such as:

1. Various activities organized in China cn.hedy/org/events/
2. Various notes written for China cn.hedy/org/notes/
3. Voice/video/... materials recorded in the Chinese community cn.hedy/org/sources/
4. ...

Therefore, official technical cooperation may be required:
Use rules such as Nginx to replace all links starting with https://hedy.org/hedy?lang=cn with https://cn.hedy.org/doc,
and then point cn.hedy.org to the official Chinese community website we are preparing to release.
We generally use the github-pages service to publish,
and may need to point the domain name's CNAME to a .github.io domain name.

[Felienne]

I made another issue for that @ZoomQuiet, see: #5721

I will move your comment there to ease conversation.