Update included examples

Update examples that were moved in kubernetes-client#938 and fix title underlines
(docutils cares about this stuff).

Signed-off-by: Stephen Finucane <stephenfin@redhat.com>

Author: stephenfin

doc/source/index.rst

@@ -1,20 +1,10 @@
-Welcome to kubernetes-python-client's documentation!
-========================================================
-
-Contents:
+kubernetes-python-client
+========================
 
 .. toctree::
    :maxdepth: 2
 
    README <README.md>
    installation
    usage
-   examples
    contributing <CONTRIBUTING.md>
-
-Indices and tables
-==================
-
-* :ref:`genindex`
-* :ref:`modindex`
-* :ref:`search`

doc/source/usage.rst

@@ -1,20 +1,17 @@
-========
+=====
 Usage
-========
+=====
 
 The directory ``examples`` contains a few examples on how to use the client.
 
-
 Deployments
 -----------
 
 Here is a simple usage of creating a deployment from a yaml file:
 
-
-.. literalinclude:: ../../examples/create_deployment.py
-
+.. literalinclude:: ../../examples/deployment_create.py
 
 The following example demonstrates how to create, update and delete deployments
 without the need to read a file from the disk:
 
-.. literalinclude:: ../../examples/deployment_examples.py
+.. literalinclude:: ../../examples/deployment_crud.py