!39422 add comment for tensor.svd

Merge pull request !39422 from huanghui/code_docs-add-comment-for-tensor-svd

docs/api/api_python/mindspore/Tensor/mindspore.Tensor.svd.rst

@@ -3,6 +3,8 @@ mindspore.Tensor.svd
 
 .. py:method:: mindspore.Tensor.svd(full_matrices=False, compute_uv=True)
 
+    计算单个或多个矩阵的奇异值分解。
+
     更多参考详见 :func:`mindspore.ops.svd`。
 
     参数：

mindspore/python/mindspore/common/tensor.py

@@ -4083,6 +4083,8 @@ class Tensor(Tensor_):
 
     def svd(self, full_matrices=False, compute_uv=True):
         """
+        Computes the singular value decompositions of one or more matrices.
+
         Refer to :func:`mindspore.ops.svd` for more detail.
 
         Args: