Update ReadMe.md

tensorflow2fluid/doc/ReadMe.md

@@ -84,7 +84,7 @@
 | 78   | [tf.nn.separable_conv2d](https://www.tensorflow.org/api_docs/python/tf/nn/separable_conv2d) | 无相应接口                                                   | [Paddle实现方法](https://github.com/PaddlePaddle/X2Paddle/blob/master/tensorflow2fluid/doc/tf.nn.separable_conv2d.md) |
 | 79   | [tf.nn.sigmoid](https://www.tensorflow.org/api_docs/python/tf/nn/sigmoid) | [fluid.layers.sigmoid](http://paddlepaddle.org/documentation/docs/zh/1.3/api_cn/layers_cn.html#sigmoid) | 功能一致                                                     |
 | 80   | [tf.nn.sigmoid_cross_entropy_with_logits](https://www.tensorflow.org/api_docs/python/tf/nn/sigmoid_cross_entropy_with_logits) | [fluid.layers.sigmoid_cross_entropy_with_logits](http://paddlepaddle.org/documentation/docs/zh/1.3/api_cn/layers_cn.html#sigmoid_cross_entropy_with_logits) | 功能一致                                                     |
-| 81   | [tf.nn.softmax](https://www.tensorflow.org/api_docs/python/tf/nn/softmax) | [fluid.layers.softmax](http://paddlepaddle.org/documentation/docs/zh/1.3/api_cn/layers_cn.html#softmax) | [差异对比](https://github.com/PaddlePaddle/X2Paddle/blob/master/tensorflow2fluid/doc/tf.nn.softmax.md) |
+| 81   | [tf.nn.softmax](https://www.tensorflow.org/api_docs/python/tf/nn/softmax) | [fluid.layers.softmax](http://paddlepaddle.org/documentation/docs/zh/1.3/api_cn/layers_cn.html#softmax) | 功能一致 |
 | 82   | [tf.nn.softmax_cross_entropy_with_logits](https://www.tensorflow.org/api_docs/python/tf/nn/softmax_cross_entropy_with_logits) | [fluid.layers.softmax_with_cross_entropy](http://paddlepaddle.org/documentation/docs/zh/1.3/api_cn/layers_cn.html#softmax_with_cross_entropy) | [差异对比](https://github.com/PaddlePaddle/X2Paddle/blob/master/tensorflow2fluid/doc/tf.nn.softmax_cross_entropy_with_logits.md) |
 | 83   | [tf.nn.softplus](https://www.tensorflow.org/api_docs/python/tf/nn/softplus) | [fluid.layers.softplus](http://paddlepaddle.org/documentation/docs/zh/1.3/api_cn/layers_cn.html#softplus) | 功能一致                                                     |
 | 84   | [tf.nn.softsign](https://www.tensorflow.org/api_docs/python/tf/nn/softsign) | [fluid.layers.softsign](http://paddlepaddle.org/documentation/docs/zh/1.3/api_cn/layers_cn.html#paddle.fluid.layers.softsign) | 功能一致                                                     |