[i18n-activity] tts:displayAlign should mention right-to-left effects

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== tts:displayAlign should mention right-to-left effects ==

The style `tts:displayAlign` is written in such a way as to make 
`tts:direction=rtl` change what the keywords `before` and `after` 
mean. It says (in part):

> The tts:displayAlign attribute is used to specify a style property 
that defines the alignment of block areas in the block progression 

However, none of the examples include setting `tts:direction` or 
mention the effect of RTL presentation. Suggest that there be text 
that mentions this behavior.

Please view or discuss this issue at 
https://github.com/w3c/i18n-activity/issues/330 using your GitHub 

Received on Tuesday, 14 February 2017 18:17:02 UTC