update doc after reverting.

Author: lorenzwalthert

API

@@ -13,3 +13,7 @@ style_text(text, ..., style = tidyverse_style, transformers = style(...))
 tidyverse_math_token_spacing()
 tidyverse_reindention()
 tidyverse_style(scope = "tokens", strict = TRUE, indent_by = 2, start_comments_with_one_space = FALSE, reindention = tidyverse_reindention(), math_token_spacing = tidyverse_math_token_spacing())
+
+## S3 methods
+
+print.vertical(x, ...)