minor update on readme.md

Author: snowkylin

readme.md

@@ -12,8 +12,14 @@
 
 本手册是一篇精简的TensorFlow入门指导，基于TensorFlow的Eager Execution（动态图）模式，力图让具备一定机器学习及Python基础的开发者们快速上手TensorFlow。
 
-This handbook is a concise introduction to TensorFlow based on TensorFlow’s Eager Execution mode, trying to help developers get started with TensorFlow quickly with some basic machine learning and Python knowledge.
+This handbook is a concise introduction to TensorFlow based on Eager Execution mode, trying to help developers get started with TensorFlow quickly with some basic machine learning and Python knowledge.
 
-PDF下载 | PDF download : https://www.tensorflowers.cn/t/6230
+PDF下载 | PDF download : 
 
-在线答疑区 | Online Q&A area : https://www.tensorflowers.cn/b/48
+- (中文版 | Chinese): https://www.tensorflowers.cn/t/6230
+- (英文版 | English): https://github.com/snowkylin/TensorFlow-cn/releases
+
+在线答疑区 | Online Q&A area : 
+
+- (中文 | Chinese): https://www.tensorflowers.cn/b/48
+- (英文 | English): https://github.com/snowkylin/TensorFlow-cn/issues