docs: correct header level in rad2deg (fortran-lang#1010)

github-actions[bot] · github-actions[bot] · commit 2c6c3059885a · 2025-07-04T16:10:05.000Z
diff --git a/doc/specs/stdlib_math.md b/doc/specs/stdlib_math.md
@@ -459,7 +459,7 @@ Experimental
 
 Elemenal function.
 
-### Description
+#### Description
 
 `rad2deg` converts phase angles from radians to degrees.
 
