[Important] Add book indexes

doc/fluid/beginners_guide/basics/image_classification/index_en.md

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+../../../../../external/book/03.image_classification/README.md

doc/fluid/beginners_guide/basics/index_en.rst

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+##########################
+Basic Deep Learning Models
+##########################
+
+This section collects six documents arranging from the simplest to the most challenging, which will guide you through the basic deep learning tasks in PaddlePaddle.
+
+The documentation in this chapter covers a lot of deep learning basics and how to implement them with PaddlePaddle. See the instructions below for how to use:
+
+
+Overview
+======================
+
+The book you are reading is an "interactive" e-book - each chapter can be run in a Jupyter Notebook.
+
+..  toctree::
+    :titlesonly:
+
+    image_classification/index_en.md
+    word2vec/index_en.md
+    recommender_system/index_en.md
+    understand_sentiment/index_en.md
+    label_semantic_roles/index_en.md
+    machine_translation/index_en.md
+
+
+We packaged Jupyter, PaddlePaddle, and various dependency softwares into a Docker image. It frees you from installing these softwares by yourself, and you only need to just install Docker. For various Linux versions, please refer to https://www.docker.com . If you use docker on `Windows <https://www.docker.com/docker-windows>`_ or `Mac <https://www.docker.com/docker-mac>`_ , consider `allocate more Memory and CPU resources to Docker  <http://stackoverflow.com/a/39720010/724872>`_ .
+
+
+Instructions
+======================
+
+
+This book assumes you are performing CPU training by default. If you want to use GPU training, the steps will vary slightly. Please refer to "GPU Training" below.
+
+
+
+
+
+CPU training
+>>>>>>>>>>>>
+
+Just run these in shell:
+
+..  code-block:: shell
+
+	docker run -d -p 8888:8888 paddlepaddle/book
+
+It downloads the Docker image for running books from DockerHub.com. 
+To read and edit this book on-line, please visit http://localhost:8888 in your browser.
+
+If the Internet connection to DockerHub.com is compromised, try our spare docker image named docker.paddlepaddlehub.com:
+
+::
+
+	docker run -d -p 8888:8888 docker.paddlepaddlehub.com/book
+
+
+GPU training
+>>>>>>>>>>>>>
+
+To ensure that the GPU driver works properly in the image, we recommend running the image with `nvidia docker <https://github.com/NVIDIA/nvidia-docker>`_ . Please install nvidia-docker first, then run:
+
+
+::
+
+	nvidia-docker run -d -p 8888:8888 paddlepaddle/book:latest-gpu
+
+
+Or use a image source in China to run:
+
+::
+
+	nvidia-docker run -d -p 8888:8888 docker.paddlepaddlehub.com/book:latest-gpu
+
+
+modify the following codes
+
+..  code-block:: python
+
+	use_cuda = False
+
+
+into :
+
+..  code-block:: python
+
+	use_cuda = True
+
+
+
+Contribute to Book
+===================
+
+We highly appreciate your original contributions of new chapters to Book! Just Pull Requests of your contributions to the sub-directory in :code:`pending` . When this chapter is endorsed, we'll gladly move it to the root directory.
+
+
+For writing, running, debugging, you need to install `shell <https://github.com/PaddlePaddle/book/blob/develop/.tools/convert-markdown-into-ipynb-and-test.sh>`_ to generate Docker image。
+
+**Please Note:** We also provide `English Readme <https://github.com/PaddlePaddle/book/blob/develop/README.md>`_ for PaddlePaddle book

doc/fluid/beginners_guide/basics/label_semantic_roles/index_en.md

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+../../../../../external/book/07.label_semantic_roles/README.md

doc/fluid/beginners_guide/basics/machine_translation/index_en.md

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+../../../../../external/book/08.machine_translation/README.md

doc/fluid/beginners_guide/basics/recommender_system/index_en.md

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+../../../../../external/book/05.recommender_system/README.md

doc/fluid/beginners_guide/basics/understand_sentiment/index_en.md

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+../../../../../external/book/06.understand_sentiment/README.md

doc/fluid/beginners_guide/basics/word2vec/index_en.md

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+../../../../../external/book/04.word2vec/README.md

doc/fluid/beginners_guide/index_en.rst

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     :hidden:
 
     install/index_en.rst
+    quick_start/index_en.rst
+    basics/index_en.rst
     programming_guide/programming_guide_en.md

doc/fluid/beginners_guide/quick_start/fit_a_line/README.md

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+../../../../../external/book/01.fit_a_line/README.md

doc/fluid/beginners_guide/quick_start/index_en.rst

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+##############
+Quick Start
+##############
+
+Welcome to Quick Start! 
+
+This section will tutor you to invent your won models of classical *linear Regression* and *Handwritten Digits Recognition* tasks in PaddlePaddle Fluid. The following tutorials provide details on model definition, training, and inference in a friendly manner based on real-life datasets:
+
+..  toctree::
+    :titlesonly:
+
+    fit_a_line/README.md
+    recognize_digits/README.md

doc/fluid/beginners_guide/quick_start/recognize_digits/README.md

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+../../../../../external/book/02.recognize_digits/README.md