fixed spacing problem due to index entry

Author: trevorcampbell

reading.Rmd

@@ -815,7 +815,7 @@ URL using one of the `read_*` functions from the `tidyverse`. But as time goes
 on, it is increasingly uncommon to find data (especially large amounts of data)
 in this format available for download from a URL. Instead, websites now often
 offer something known as an **a**pplication **p**rogramming **i**nterface
-(API), \index{application programming interface|see{API}}\index{API} which
+(API),\index{application programming interface|see{API}}\index{API} which
 provides a programmatic way to ask for subsets of a data set. This allows the
 website owner to control *who* has access to the data, *what portion* of the
 data they have access to, and *how much* data they can access.  Typically, the