Fix typos in limitations

Author: antonwolfy

dpnp/dpnp_iface_mathematical.py

@@ -1458,7 +1458,7 @@ def ediff1d(ary, to_end=None, to_begin=None):
 
 Limitations
 -----------
-Parameters `where' and `subok` are supported with their default values.
+Parameters `where` and `subok` are supported with their default values.
 Keyword argument `kwargs` is currently unsupported.
 Otherwise ``NotImplementedError`` exception will be raised.
 
@@ -3293,7 +3293,7 @@ def prod(
 
 Limitations
 -----------
-Parameters `where' and `subok` are supported with their default values.
+Parameters `where` and `subok` are supported with their default values.
 Keyword argument `kwargs` is currently unsupported.
 Otherwise ``NotImplementedError`` exception will be raised.
 
@@ -3547,7 +3547,7 @@ def real_if_close(a, tol=100):
 
 Limitations
 -----------
-Parameters `where' and `subok` are supported with their default values.
+Parameters `where` and `subok` are supported with their default values.
 Keyword argument `kwargs` is currently unsupported.
 Otherwise ``NotImplementedError`` exception will be raised.