support speaker notes and timing comments on the title slide
Pandoc puts content written before the first heading into an otherwise
empty phantom slide right after the title slide. When such a slide
consists of nothing but ::: notes blocks, timing comments, and
whitespace, it is now merged into the title slide: the title gets the
data-timing attribute and the notes, the phantom slide disappears, and
slide_timing() reports the title time as "(title)".
Change-Id: I984e924c467c4e15905b97c128c380887132f09d
diff --git a/README.Rmd b/README.Rmd
index 11a7f6b..b8e1d9d 100644
--- a/README.Rmd
+++ b/README.Rmd
@@ -127,7 +127,7 @@
<!-- JD 00:30 -->
```
-This means John Doe will need 30 seconds for that slide. For talks presented by a single speaker, the speaker code can be omitted:
+This means John Doe will need 30 seconds for that slide. For talks presented by a single speaker, the speaker code can be omitted: Comments placed before the first heading are applied to the title slide, so you can give the title itself a time budget and a welcome note:
``` markdown
## My slide title