Consistent with the document

docs/sanic/logging.md

@@ -10,6 +10,7 @@ A simple example using default setting would be like this:
 ```python
 from sanic import Sanic
 from sanic.config import LOGGING
+from sanic.response import text
 
 # The default logging handlers are ['accessStream', 'errorStream']
 # but we change it to use other handlers here for demo purpose
@@ -20,7 +21,7 @@ app = Sanic('test')
 
 @app.route('/')
 async def test(request):
-    return response.text('Hello World!')
+    return text('Hello World!')
 
 if __name__ == "__main__":
   app.run(log_config=LOGGING)

docs/sanic/response.md

@@ -5,70 +5,70 @@ Use functions in `sanic.response` module to create responses.
 ## Plain Text
 
 ```python
-from sanic import response
+from sanic.response import text
 
 
 @app.route('/text')
 def handle_request(request):
-    return response.text('Hello world!')
+    return text('Hello world!')
 ```
 
 ## HTML
 
 ```python
-from sanic import response
+from sanic.response import html
 
 
 @app.route('/html')
 def handle_request(request):
-    return response.html('<p>Hello world!</p>')
+    return html('<p>Hello world!</p>')
 ```
 
 ## JSON
 
 
 ```python
-from sanic import response
+from sanic.response import json
 
 
 @app.route('/json')
 def handle_request(request):
-    return response.json({'message': 'Hello world!'})
+    return json({'message': 'Hello world!'})
 ```
 
 ## File
 
 ```python
-from sanic import response
+from sanic.response import file
 
 
 @app.route('/file')
 async def handle_request(request):
-    return await response.file('/srv/www/whatever.png')
+    return await file('/srv/www/whatever.png')
 ```
 
 ## Streaming
 
 ```python
-from sanic import response
+from sanic.response import stream
 
 @app.route("/streaming")
 async def index(request):
     async def streaming_fn(response):
         response.write('foo')
         response.write('bar')
-    return response.stream(streaming_fn, content_type='text/plain')
+    return stream(streaming_fn, content_type='text/plain')
 ```
 
 ## Redirect
 
 ```python
-from sanic import response
+from sanic.response import redirect
 
 
 @app.route('/redirect')
 def handle_request(request):
-    return response.redirect('/json')
+    return redirect('/json')
 ```
 
 ## Raw
@@ -76,12 +76,12 @@ def handle_request(request):
 Response without encoding the body
 
 ```python
-from sanic import response
+from sanic.response import raw
 
 
 @app.route('/raw')
 def handle_request(request):
-    return response.raw('raw data')
+    return raw('raw data')
 ```
 
 ## Modify headers or status
@@ -89,12 +89,12 @@ def handle_request(request):
 To modify headers or status code, pass the `headers` or `status` argument to those functions:
 
 ```python
-from sanic import response
+from sanic.response import json
 
 
 @app.route('/json')
 def handle_request(request):
-    return response.json(
+    return json(
         {'message': 'Hello world!'},
         headers={'X-Served-By': 'sanic'},
         status=200