Fix title formatting

Nodd · Nodd · commit a983ae149bf9 · 2024-11-06T03:42:29.000+01:00
diff --git a/Doc/library/math.rst b/Doc/library/math.rst
@@ -692,7 +692,7 @@ instead of circles.
 
 
 Special functions
--------------------------
+-----------------
 
 .. function:: erf(x)
 
