!31707 CSR add note

Merge pull request !31707 from huangmengxi/code_docs_csr

docs/api/api_python/mindspore/mindspore.CSRTensor.rst

@@ -8,6 +8,7 @@ mindspore.CSRTensor
 
     .. note::
         这是一个实验特性，在未来可能会发生API的变化。
+        如果values或indices的长度超出了indptr所指定的取值范围，超出部分的行为将没有定义。
 
     **参数：**
 

mindspore/python/mindspore/common/tensor.py

@@ -2627,6 +2627,7 @@ class CSRTensor(CSRTensor_):
 
     Note:
         This is an experimental feature and is subjected to change.
+        If the length of values or indices exceeds the range indicated by indptr, its behavior will be undefined.
 
     Args:
         indptr (Tensor): 1-D Tensor of size `shape[0] + 1`, which indicates the