fix(pointers.md): correct referer across an other file

Signed-off-by: Norwid Behrnd <[email protected]>

Author: nbehrnd

source/learn/f95_features/pointers.md

@@ -290,7 +290,8 @@ window => table(m:n, p:q)
 
 The subscripts of window are `1:n - m + 1, 1:q - p + 1`.
 Similarly, for `tar%u` (as defined in
-[Array elements](array_elements)),
+[Array elements](array_handling.md#array-elements)
+of section Array handling),
 we can use, say, `taru => tar%u`
 to point at all the u components of tar, and subscript it as
 `taru(1, 2)`.