updating README

README.md

@@ -35,11 +35,6 @@ Note that the GremlinClient constructor and the create_client function take [key
 ```python
 >>> loop = asyncio.get_event_loop()
 >>> gc = GremlinClient(url='ws://localhost:8182/', loop=loop)  # Default url
-# Or even better, use the constructor function. This will init pool connections.
-# ***Must be done inside a coroutine***
->>> gc = yield from create_client(loop=loop)
-# Or outside of a coroutine using the loop to help
->>> gc = loop.run_until_complete(create_client(loop=loop))
 
 # Use get.
 >>> @asyncio.coroutine
@@ -87,22 +82,3 @@ For convenience, `aiogremlin` also provides a method `execute`, which is equival
 >>> loop.run_until_complete(gc.close())  # Explicitly close client!!!
 >>> loop.close()
 ```
-
-To avoid the explicit client close, `aiogremlin` provides a class called `ConnectionContextManager`. To create an instance of `ConnectionContextManager`, get a connection from a `WebSocketPool` instance as follows:
-
-```python
->>> loop = asyncio.get_event_loop()
-# Note that url is a required positional param here!
-# Pool does not open any connections until requested.
->>> pool = aiogremlin.WebSocketPool('ws://localhost:8182/')
->>> @asyncio.coroutine
-... def go(pool, loop):
-...     with (yield from pool) as conn:
-...         gc = aiogremlin.GremlinClient(connection=conn, loop=loop)
-...         resp = yield from gc.execute("1 + 1")
-...     return resp
->>> result = loop.run_until_complete(go(pool, loop))
->>> result
-[Message(status_code=200, data=[2], message={}, metadata='')]
->>> loop.close()  # Close loop, but client connections will be closed.
-```