Update examples

Author: Weichen Shen

docs/source/History.md

@@ -1,5 +1,5 @@
 # History
-- 08/02/2019 : [v0.6.0](https://github.com/shenweichen/DeepCTR/releases/tag/v0.6.0) released.Now DeepCTR is compatible with tensorflow from `1.14` and `2.0.0`. 
+- 08/02/2019 : [v0.6.0](https://github.com/shenweichen/DeepCTR/releases/tag/v0.6.0) released.Now DeepCTR is compatible with tensorflow `1.14` and `2.0.0`. 
 - 07/21/2019 : [v0.5.2](https://github.com/shenweichen/DeepCTR/releases/tag/v0.5.2) released.Refactor `Linear` Layer.
 - 07/10/2019 : [v0.5.1](https://github.com/shenweichen/DeepCTR/releases/tag/v0.5.1) released.Add [FiBiNET](./Features.html#fibinet-feature-importance-and-bilinear-feature-interaction-network).  
 - 06/30/2019 : [v0.5.0](https://github.com/shenweichen/DeepCTR/releases/tag/v0.5.0) released.Refactor inputs module. 

examples/run_dsin.py

@@ -44,8 +44,8 @@ def get_xy_fd(hash_flag=False):
     return x, y, feature_columns, behavior_feature_list
 
 if __name__ == "__main__":
-    if tf.__version__ > '1.14.0':
-        tf.compat.v1.disable_eager_execution() #todo
+    if tf.__version__ >= '2.0.0':
+        tf.compat.v1.disable_eager_execution()
 
     x, y, feature_columns, behavior_feature_list = get_xy_fd(True)