Update csr.py
Inconsistent number of brackets in the documentation.
@@ -34,7 +34,7 @@ class csr_matrix(compressed._compressed_sparse_matrix):
``csr_matrix((M, N), [dtype])``
It constructs an empty matrix whose shape is ``(M, N)``. Default dtype
is float64.
- ``csr_matrix((data, (row, col))``
+ ``csr_matrix((data, (row, col)))``
All ``data``, ``row`` and ``col`` are one-dimenaional
:class:`cupy.ndarray`.
``csr_matrix((data, indices, indptr))``
