Update src/stdlib_math.fypp

Co-authored-by: Jeremie Vandenplas <jeremie.vandenplas@gmail.com>

Author: ejovo13

src/stdlib_math.fypp

@@ -32,7 +32,7 @@ module stdlib_math
     !! Create rank 1 array of linearly spaced elements
     !! If the number of elements is not specified, create an array with size 100. If n is a negative value,
     !! return an array with size 0. If n = 1, return an array whose only element is end
-    !!([Specification](../page/specs/stdlib_math.html#description))
+    !!([Specification](../page/specs/stdlib_math.html#linspace-create-a-linearly-spaced-rank-one-array))
     #:for k1, t1 in RC_KINDS_TYPES
       #:set RName = rname("linspace_default", 1, t1, k1)
       module function ${RName}$(start, end) result(res)