Added "Open in Cloud Shell" buttons to README files [(#1254)](GoogleCloudPlatform/python-docs-samples#1254)

Author: michaelawyu

samples/snippets/README.rst

@@ -3,6 +3,10 @@
 Google Cloud Natural Language API Python Samples
 ===============================================================================
 
+.. image:: https://gstatic.com/cloudssh/images/open-btn.png
+   :target: https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/GoogleCloudPlatform/python-docs-samples&page=editor&open_in_editor=language/cloud-client/v1/README.rst
+
+
 This directory contains samples for Google Cloud Natural Language API. The `Google Cloud Natural Language API`_ provides natural language understanding technologies to developers, including sentiment analysis, entity recognition, and syntax analysis. This API is part of the larger Cloud Machine Learning API.
 
 - See the `migration guide`_ for information about migrating to Python client library v0.26.1.
@@ -58,6 +62,10 @@ Samples
 Quickstart
 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 
+.. image:: https://gstatic.com/cloudssh/images/open-btn.png
+   :target: https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/GoogleCloudPlatform/python-docs-samples&page=editor&open_in_editor=language/cloud-client/v1/quickstart.py;language/cloud-client/v1/README.rst
+
+
 
 
 To run this sample:
@@ -70,6 +78,10 @@ To run this sample:
 Snippets
 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 
+.. image:: https://gstatic.com/cloudssh/images/open-btn.png
+   :target: https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/GoogleCloudPlatform/python-docs-samples&page=editor&open_in_editor=language/cloud-client/v1/snippets.py;language/cloud-client/v1/README.rst
+
+
 
 
 To run this sample:
@@ -79,17 +91,20 @@ To run this sample:
     $ python snippets.py
 
     usage: snippets.py [-h]
-                       {sentiment-entities-text,sentiment-entities-file,sentiment-text,sentiment-file,entities-text,entities-file,syntax-text,syntax-file}
+                       {classify-text,classify-file,sentiment-entities-text,sentiment-entities-file,sentiment-text,sentiment-file,entities-text,entities-file,syntax-text,syntax-file}
                        ...
-    
+
     This application demonstrates how to perform basic operations with the
     Google Cloud Natural Language API
-    
+
     For more information, the documentation at
     https://cloud.google.com/natural-language/docs.
-    
+
     positional arguments:
-      {sentiment-entities-text,sentiment-entities-file,sentiment-text,sentiment-file,entities-text,entities-file,syntax-text,syntax-file}
+      {classify-text,classify-file,sentiment-entities-text,sentiment-entities-file,sentiment-text,sentiment-file,entities-text,entities-file,syntax-text,syntax-file}
+        classify-text       Classifies content categories of the provided text.
+        classify-file       Classifies content categories of the text in a Google
+                            Cloud Storage file.
         sentiment-entities-text
                             Detects entity sentiment in the provided text.
         sentiment-entities-file
@@ -104,13 +119,14 @@ To run this sample:
         syntax-text         Detects syntax in the text.
         syntax-file         Detects syntax in the file located in Google Cloud
                             Storage.
-    
+
     optional arguments:
       -h, --help            show this help message and exit
 
 
 
 
+
 The client library
 -------------------------------------------------------------------------------
 

samples/snippets/README.rst.in

@@ -28,3 +28,5 @@ samples:
   show_help: true
 
 cloud_client_library: true
+
+folder: language/cloud-client/v1