update docs: add make build in readme and docs

Signed-off-by: zhuzhengyi1 <zhuzhengyi@jd.com>

README.md

@@ -8,11 +8,10 @@
 [![FOSSA Status](https://app.fossa.io/api/projects/git%2Bgit.luolix.top%2Fchubaofs%2Fcfs.svg?type=shield)](https://app.fossa.io/projects/git%2Bgit.luolix.top%2Fchubaofs%2Fcfs?ref=badge_shield)
 [![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/2761/badge)](https://bestpractices.coreinfrastructure.org/projects/2761)
 
-
 <img src="https://user-images.githubusercontent.com/47099843/55525970-bf53d880-56c5-11e9-8c28-55d208859824.png" width="400" height="293" />
 
-## Overview
 
+## Overview
 
 ChubaoFS (储宝文件系统) is a distributed file system for cloud native applications. It has the following features:
 
@@ -30,15 +29,31 @@ For more details, please refer to our SIGMOD 2019 paper "ChubaoFS: A Distributed
 
 
 ## Document
+
 https://chubaofs.readthedocs.io/en/latest/
 
 https://chubaofs.readthedocs.io/zh_CN/latest/
 
+
+## Build
+
+Build latest version of chubaofs is simply as following:
+
+```
+$ git clone http://github.com/chubaofs/chubaofs.git
+$ cd chubaofs
+$ make
+```
+
+If the build is successful, `cfs-server` and `cfs-client` will be found in directory `build/bin`
+
+
 ## Docker
 
 Under the docker directory, a helper tool called run_docker.sh is provided to run ChubaoFS with docker-compose.
 
 To start a minimal ChubaoFS cluster from scratch, note that **/data/disk** is arbitrary, and make sure there are at least 30G available space.
+
 ```
 $ docker/run_docker.sh -r -d /data/disk
 ```
@@ -52,24 +67,24 @@ $ mount | grep chubaofs
 Open http://127.0.0.1:3000 in browser, login with `admin/123456` to view grafana monitor metrics.
 
 Or run server and client seperately by following commands:
+
 ```
 $ docker/run_docker.sh -b
 $ docker/run_docker.sh -s -d /data/disk
 $ docker/run_docker.sh -c
 $ docker/run_docker.sh -m
 ```
 
-For more usage,
+For more usage:
+
 ```
 $ docker/run_docker.sh -h
 ```
 
 
 ## License
 
-
 Licensed under the [Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0).
 For detail see [LICENSE](LICENSE) and [NOTICE](NOTICE).
 
-
 [![FOSSA Status](https://app.fossa.io/api/projects/git%2Bgit.luolix.top%2Fchubaofs%2Fcfs.svg?type=large)](https://app.fossa.io/projects/git%2Bgit.luolix.top%2Fchubaofs%2Fcfs?ref=badge_large)

docs/source/quick-start-guide.rst

@@ -25,6 +25,14 @@ Build Client
 
    cd client; sh build.sh
 
+Or use following command to build together:
+
+.. code-block:: bash
+
+   make build
+
+If the build is successful, `cfs-server` and `cfs-client` will be found in directory `build/bin`
+
 Deployment
 ----------
 
@@ -58,7 +66,7 @@ Sample *master.json* is shown as follows,
      "clusterName":"cfs"
    }
 
-   
+
 For detailed explanations of *master.json*, please refer to :doc:`user-guide/master`.
 
 Start Metanode
@@ -132,11 +140,11 @@ Start Datanode
 2. Start datanode
 
    .. code-block:: bash
-   
+
       nohup ./cfs-server -c datanode.json &
 
    Sample *datanode.json* is shown as follows,
-   
+
    .. code-block:: json
 
       {
@@ -186,9 +194,9 @@ Mount Client
 3. Run ``cfs-client -c fuse.json`` to start a client daemon.
 
    Sample *fuse.json* is shown as follows,
-   
+
    .. code-block:: json
-   
+
       {
         "mountPoint": "/mnt/fuse",
         "volName": "test",