update

01.fit_a_line/README.md

@@ -2,7 +2,7 @@
 
 Let us begin the tutorial with a classical problem called Linear Regression \[[1](#References)\]. In this chapter, we will train a model from a realistic dataset to predict home prices. Some important concepts in Machine Learning will be covered through this example.
 
-The source code for this tutorial lives on [book/fit_a_line](https://github.com/PaddlePaddle/book/tree/develop/01.fit_a_line).For instructions on getting started with this book,see [Running This Book](https://github.com/PaddlePaddle/book/blob/develop/README.md#running-the-book).
+The source code for this tutorial lives on [book/fit_a_line](https://github.com/PaddlePaddle/book/tree/develop/01.fit_a_line). For instructions on getting started with this book,see [Running This Book](https://github.com/PaddlePaddle/book/blob/develop/README.md#running-the-book).
 
 ## Problem Setup
 

01.fit_a_line/index.html

@@ -44,7 +44,7 @@
 
 Let us begin the tutorial with a classical problem called Linear Regression \[[1](#References)\]. In this chapter, we will train a model from a realistic dataset to predict home prices. Some important concepts in Machine Learning will be covered through this example.
 
-The source code for this tutorial lives on [book/fit_a_line](https://github.com/PaddlePaddle/book/tree/develop/01.fit_a_line).For instructions on getting started with this book,see [Running This Book](https://github.com/PaddlePaddle/book/blob/develop/README.md#running-the-book).
+The source code for this tutorial lives on [book/fit_a_line](https://github.com/PaddlePaddle/book/tree/develop/01.fit_a_line). For instructions on getting started with this book,see [Running This Book](https://github.com/PaddlePaddle/book/blob/develop/README.md#running-the-book).
 
 ## Problem Setup
 

02.recognize_digits/README.md

 # Recognize Digits
 
-The source code for this tutorial is here:  [book/recognize_digits](https://github.com/PaddlePaddle/book/tree/develop/02.recognize_digits).
-For instructions on getting started with this book,see [Running This Book](https://github.com/PaddlePaddle/book/blob/develop/README.md#running-the-book).
+The source code for this tutorial is here:  [book/recognize_digits](https://github.com/PaddlePaddle/book/tree/develop/02.recognize_digits). For instructions on getting started with this book,see [Running This Book](https://github.com/PaddlePaddle/book/blob/develop/README.md#running-the-book).
 
 ## Introduction
 When one learns to program, the first task is usually to write a program that prints "Hello World!".

02.recognize_digits/index.html

@@ -42,8 +42,7 @@
 <div id="markdown" style='display:none'>
 # Recognize Digits
 
-The source code for this tutorial is here:  [book/recognize_digits](https://github.com/PaddlePaddle/book/tree/develop/02.recognize_digits).
-For instructions on getting started with this book,see [Running This Book](https://github.com/PaddlePaddle/book/blob/develop/README.md#running-the-book).
+The source code for this tutorial is here:  [book/recognize_digits](https://github.com/PaddlePaddle/book/tree/develop/02.recognize_digits). For instructions on getting started with this book,see [Running This Book](https://github.com/PaddlePaddle/book/blob/develop/README.md#running-the-book).
 
 ## Introduction
 When one learns to program, the first task is usually to write a program that prints "Hello World!".

03.image_classification/README.md

@@ -2,7 +2,7 @@
 Image Classification
 =======================
 
-The source code for this chapter is at [book/image_classification](https://github.com/PaddlePaddle/book/tree/develop/03.image_classification).For instructions on getting started with this book,see [Running This Book](https://github.com/PaddlePaddle/book/blob/develop/README.md#running-the-book).
+The source code for this chapter is at [book/image_classification](https://github.com/PaddlePaddle/book/tree/develop/03.image_classification). For instructions on getting started with this book,see [Running This Book](https://github.com/PaddlePaddle/book/blob/develop/README.md#running-the-book).
 
 ## Background
 

03.image_classification/index.html

@@ -44,7 +44,7 @@
 Image Classification
 =======================
 
-The source code for this chapter is at [book/image_classification](https://github.com/PaddlePaddle/book/tree/develop/03.image_classification).For instructions on getting started with this book,see [Running This Book](https://github.com/PaddlePaddle/book/blob/develop/README.md#running-the-book).
+The source code for this chapter is at [book/image_classification](https://github.com/PaddlePaddle/book/tree/develop/03.image_classification). For instructions on getting started with this book,see [Running This Book](https://github.com/PaddlePaddle/book/blob/develop/README.md#running-the-book).
 
 ## Background
 

08.machine_translation/README.md

 # Machine Translation
 
-The source code of this tutorial is live at [book/machine_translation](https://github.com/PaddlePaddle/book/tree/develop/08.machine_translation).For instructions on getting started with this book,see [Running This Book](https://github.com/PaddlePaddle/book/blob/develop/README.md#running-the-book).
+The source code of this tutorial is live at [book/machine_translation](https://github.com/PaddlePaddle/book/tree/develop/08.machine_translation). For instructions on getting started with this book,see [Running This Book](https://github.com/PaddlePaddle/book/blob/develop/README.md#running-the-book).
 
 ## Background
 

08.machine_translation/index.html

@@ -42,7 +42,7 @@
 <div id="markdown" style='display:none'>
 # Machine Translation
 
-The source code of this tutorial is live at [book/machine_translation](https://github.com/PaddlePaddle/book/tree/develop/08.machine_translation).For instructions on getting started with this book,see [Running This Book](https://github.com/PaddlePaddle/book/blob/develop/README.md#running-the-book).
+The source code of this tutorial is live at [book/machine_translation](https://github.com/PaddlePaddle/book/tree/develop/08.machine_translation). For instructions on getting started with this book,see [Running This Book](https://github.com/PaddlePaddle/book/blob/develop/README.md#running-the-book).
 
 ## Background