Add more documentation for TTY child frames

* doc/lispref/frames.texi (Child Frames): Document that TTY
child frames are now supported.
* etc/NEWS: Document another limitation of TTY child frames.

(cherry picked from commit c19dd8e9d6c54080426623129a824e5bb2fcf7be)

diff --git a/doc/lispref/frames.texi b/doc/lispref/frames.texi
index 78c6d8b4b708a843a5b68cc5ffa200057ad8f16d..310b37cd5b35fcce6ca1d6ded490b30578f7741d 100644 (file)
--- a/doc/lispref/frames.texi
+++ b/doc/lispref/frames.texi
@@ -3396,8 +3396,8 @@ of its sibling child frames.
 
   By design, operations to make or modify child frames are implemented
 with the help of frame parameters (@pxref{Frame Parameters}) without any
-specialized functions or customizable variables.  Note that child frames
-are meaningful on graphical terminals only.
+specialized functions or customizable variables.  Child frames
+are meaningful on graphical and text terminals.
 
   To create a new child frame or to convert a normal frame into a child
 frame, set that frame's @code{parent-frame} parameter (@pxref{Frame