Fix typo in Limitation block separator in dpnp.max docstring

Author: antonwolfy

dpnp/dpnp_iface_statistics.py

@@ -832,7 +832,7 @@ def max(a, axis=None, out=None, keepdims=False, initial=None, where=True):
         dimension ``a.ndim - len(axis)``.
 
     Limitations
-    -----------.
+    -----------
     Parameters `where`, and `initial` are only supported with their default
     values. Otherwise ``NotImplementedError`` exception will be raised.