correct indentation of list in vectors.Rmd (#697)

The beginning "Double" is five space away from the left margin, while the R code chunk is only four thus not recognized as block element by Pandoc.
This commit is contained in:
Zhuoer Dong
2018-10-25 01:24:23 +08:00
committed by Hadley Wickham
parent b38b0ce4cb
commit e32418becd