Add skip to defaults (#349)

Author: krlmlr

docs/configuration.qmd

@@ -22,6 +22,7 @@ line-ending = "auto"
 persistent-line-breaks = true
 exclude = []
 default-exclude = true
+skip = []
 ```
 
 ## Configuration recommendations
@@ -261,4 +262,4 @@ igraph::graph_from_literal(A +-+ B +---+ C ++ D + E)
 ```
 
 In the short term, we also anticipate that this will be useful to avoid formatting of `tibble::tribble()` calls.
-In the long term, Air may have more sophisticated features for automatically formatting using a specified alignment.
+In the long term, Air may have more sophisticated features for automatically formatting using a specified alignment.