update doc

docs/sanic/logging.md

@@ -9,12 +9,6 @@ A simple example using default settings would be like this:
 
 ```python
 from sanic import Sanic
-from sanic.config import LOGGING
-
-# The default logging handlers are ['accessStream', 'errorStream']
-# but we change it to use other handlers here for demo purpose
-LOGGING['loggers']['network']['handlers'] = [
-    'accessSysLog', 'errorSysLog']
 
 app = Sanic('test')
 
@@ -23,14 +17,14 @@ async def test(request):
     return response.text('Hello World!')
 
 if __name__ == "__main__":
-  app.run(log_config=LOGGING)
+  app.run(debug=True, access_log=True)
 ```
 
-And to close logging, simply assign log_config=None:
+And to close logging, simply assign access_log=False:
 
 ```python
 if __name__ == "__main__":
-  app.run(log_config=None)
+  app.run(access_log=False)
 ```
 
 This would skip calling logging functions when handling requests.
@@ -38,59 +32,24 @@ And you could even do further in production to gain extra speed:
 
 ```python
 if __name__ == "__main__":
-  # disable internal messages
+  # disable debug messages
-  app.run(debug=False, log_config=None)
+  app.run(debug=False, access_log=False)
 ```
 
 ### Configuration
 
-By default, log_config parameter is set to use sanic.config.LOGGING dictionary for configuration. The default configuration provides several predefined `handlers`:
+By default, log_config parameter is set to use sanic.log.LOGGING_CONFIG_DEFAULTS dictionary for configuration.
 
-- internal (using [logging.StreamHandler](https://docs.python.org/3/library/logging.handlers.html#logging.StreamHandler))<br>
+There are three `loggers` used in sanic, and **must be defined if you want to create your own logging configuration**:
-  For internal information console outputs.
 
-
+- root:<br>
-- accessStream (using [logging.StreamHandler](https://docs.python.org/3/library/logging.handlers.html#logging.StreamHandler))<br>
-  For requests information logging in console
-
-
-- errorStream (using [logging.StreamHandler](https://docs.python.org/3/library/logging.handlers.html#logging.StreamHandler))<br>
-  For error message and traceback logging in console.
-
-
-- accessSysLog (using [logging.handlers.SysLogHandler](https://docs.python.org/3/library/logging.handlers.html#logging.handlers.SysLogHandler))<br>
-  For requests information logging to syslog.
-  Currently supports Windows (via localhost:514), Darwin (/var/run/syslog),
-  Linux (/dev/log) and FreeBSD (/dev/log).<br>
-  You would not be able to access this property if the directory doesn't exist.
-  (Notice that in Docker you have to enable everything by yourself)
-
-
-- errorSysLog (using [logging.handlers.SysLogHandler](https://docs.python.org/3/library/logging.handlers.html#logging.handlers.SysLogHandler))<br>
-  For error message and traceback logging to syslog.
-  Currently supports Windows (via localhost:514), Darwin (/var/run/syslog),
-  Linux (/dev/log) and FreeBSD (/dev/log).<br>
-  You would not be able to access this property if the directory doesn't exist.
-  (Notice that in Docker you have to enable everything by yourself)
-
-
-And `filters`:
-
-- accessFilter (using sanic.log.DefaultFilter)<br>
-  The filter that allows only levels in `DEBUG`, `INFO`, and `NONE(0)`
-
-
-- errorFilter (using sanic.log.DefaultFilter)<br>
-  The filter that allows only levels in `WARNING`, `ERROR`, and `CRITICAL`
-
-There are two `loggers` used in sanic, and **must be defined if you want to create your own logging configuration**:
-
-- sanic:<br>
   Used to log internal messages.
 
+- sanic.error:<br>
+  Used to log error logs.
 
-- network:<br>
+- sanic.access:<br>
-  Used to log requests from network, and any information from those requests.
+  Used to log access logs.
 
 #### Log format: