Use n instead of infinity (#9759)

contributing-guides/style-guide.md

@@ -134,7 +134,8 @@ All borders of integer and float ranges get included. If you want to exclude the
 `{{1..5}}` == `[1-6)`.
 
 - Use `{{from..to}}` syntax for closed ranges.
-- Use `{{-infinity..to}}` or `{{from..infinity}}` syntax for integer partially closed ranges.
+- Use `{{-n..to}}` or `{{from..n}}` syntax for integer partially closed ranges where `n` is a keyword
+  signifying the minimum or maximum range value e.g. `{{1..n}}` - 1 or greater values.
 - Use `{{integer}}` syntax for values where any integer is valid.
 - Use `{{float}}` syntax for values where any float is valid.