Merge pull request #1160 from wkentaro/doc-for-jsk-data-cli

[jsk_data] Documentation about `$ jsk_data` cli

jsk_data/README.md

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+jsk\_data
+=========
+
+A stack for data management tools which are used in JSK lab.
+
+
+`$ jsk_data` command
+--------------------
+
+`jsk_data` is command line interface to rename, upload and download data, and
+this is fully designed for JSK lab members.
+(this command communicates with internal server in lab)
+
+There are following sub commands. See `jsk_data [sub command] --help` for more detail.
+
+* `ls`: List data in the server.
+
+    Usage is `jsk_data ls [OPTIONS] [QUERY]`.
+
+* `get`: Download data from the server.
+
+    Usage is `jsk_data put [OPTIONS] FILENAME`.
+
+* `put`: Upload data to the server.
+
+    Usage is `jsk_data put [OPTIONS] FILENAME`.  
+    With `--public` option, it also uploads to
+    [public Google Drive folder](https://drive.google.com/folderview?id=0B9P1L--7Wd2vUGplQkVLTFBWcFE),
+    so please care about it when you handle secure data.  
+
+* `pubinfo`: Show public data info.
+
+    Usage is `jsk_data pubinfo [OPTIONS] FILENAME`.  
+
+**Screencast**
+
+![](./images/jsk_data_cli_screencast.gif)