Describe the enhancement requested

We use https://github.com/apache/arrow-site/blob/main/_docs/c_glib/index.md as the source of https://arrow.apache.org/docs/c_glib/ . It's difficult to maintain because we use this repository for https://arrow.apache.org/docs/ .

We can use only apache/arrow to maintain https://arrow.apache.org/docs/c_glib/ by using https://github.com/apache/arrow/tree/main/docs/source/c_glib as its source.

Component(s)

Documentation, GLib