[i18n-activity] How would someone display ruby inline?

r12a has just created a new issue for 
https://github.com/w3c/i18n-activity:

== How would someone display ruby inline? ==
10.2.39 tts:rubyPosition
https://www.w3.org/TR/2016/WD-ttml2-20161117/#style-attribute-rubyPosition

Is there a way to make the ruby display inline when desired?

Note that there are two possibilities here. Given a word such as 東京, 
the user may want to produce

a. 東(とう)京(きよ)
b. 東京(とうきよ)

from the same markup. The second approach tends to be used for compoun
 nouns in Japanese.

Please view or discuss this issue at 
https://github.com/w3c/i18n-activity/issues/335 using your GitHub 
account