[django] minor on docs

Author: Emanuele Palazzetti

ddtrace/contrib/django/__init__.py

@@ -6,7 +6,7 @@
 installed apps and in your middleware classes in ``settings.py``::
 
     INSTALLED_APPS = [
-        # ...
+        # your Django apps...
 
         # the order is not important
         'ddtrace.contrib.django',
@@ -15,7 +15,8 @@
     MIDDLEWARE_CLASSES = (
         # the tracer must be the first middleware
         'ddtrace.contrib.django.TraceMiddleware',
-        ...
+
+        # your middleware...
     )
 
 The configuration of this integration is all namespaced inside a single
@@ -36,15 +37,15 @@
 
 The available settings are:
 
-* ``TRACER`` (default ``ddtrace.tracer``): set the default tracer
+* ``TRACER`` (default: ``ddtrace.tracer``): set the default tracer
   instance that is used to trace Django internals. By default the ``ddtrace``
   tracer is used.
 * ``DEFAULT_SERVICE`` (default: ``django``): set the service name used by the
   tracer. Usually this configuration must be updated with a meaningful name.
 * ``ENABLED``: (default: ``not django_settings.DEBUG``): set if the tracer
   is enabled or not. When a tracer is disabled, Django internals are not
   automatically instrumented and the requests are not traced even if the
-  ``TraceMiddleware`` is properly installed. This settings cannot be changed
+  ``TraceMiddleware`` is properly installed. This setting cannot be changed
   at runtime and a restart is required. By default the tracer is disabled
   when in ``DEBUG`` mode, enabled otherwise.
 """