docs: refine kindOf documentation

Signed-off-by: Luca Zeuch <[email protected]>

Author: l-zeuch

content/docs/reference/templates/functions.md

@@ -1402,12 +1402,13 @@ chaining `index` calls, e.g. `index (index $x 0) 1`.
 ### kindOf
 
 ```
-{{ $kind := kindOf <value> [follow] }}
+{{ $kind := kindOf <value> [indirect] }}
 ```
 
-Returns the kind (that is, type) of the provided value.
+Returns the [kind](https://pkg.go.dev/reflect#Kind) of the provided value.
 
-If `value` is a pointer, set the `follow` argument to `true` to follow the pointer to the held type.
+If `value` is behind an `interface{}` or pointer, set `indirect` to true to read the inner value. Most applications of
+this function will want to do this.
 
 ### len