[jlreq] Fig. 3.83 doesn't match its description

The text before Fig. 3.83 says:

> There is another variation that allows ruby text to overhang any
ideographic characters (cl-19), hiragana (cl-15) or katakana (cl-16) up to
the full-width size of a ruby character (see Fig. 3.83)

However, in the figure, the ruby text only overhang up to half-width size
of a ruby character, even if the description says it can overhang more.
(See the "懐(ふところ)" in the figure)

I guess either the figure or the description should be changed.

- Xidorn