Add docs on identification

docs/install.rst

@@ -97,6 +97,10 @@ to specify the used services explicitly.  Services are configured in the
 project ``settings.py`` file.  The settings required to enable each
 service are listed here.  See the service documentation for details.
 
+* :doc:`Chartbeat <services/chartbeat>`::
+
+	CHARTBEAT_USER_ID = '12345'
+
 * :doc:`Clicky <services/clicky>`::
 
 	CLICKY_SITE_ID = '12345678'

docs/services/clicky.rst

@@ -8,6 +8,10 @@ designed to be very easy to use.
 
 .. _Clicky: http://getclicky.com/
 
+The setup code is added to the bottom of the HTML body.  By default, the
+username of a logged-in user is passed to Clicky.  See
+:data:`ANALYTICAL_AUTO_IDENTIFY`.
+
 
 Required settings
 -----------------

docs/services/kiss_insights.rst

@@ -7,6 +7,11 @@ the targeted, actionable feedback you need to make your site better.
 
 .. _KISSinsights: http://www.kissinsights.com/
 
+The code is added to the top of the HTML body.  By default, the
+username of a logged-in user is passed to KISSinsights.  See
+:data:`ANALYTICAL_AUTO_IDENTIFY`.
+
+
 
 Required settings
 -----------------

docs/services/kiss_metrics.rst

@@ -8,6 +8,10 @@ many drop out at each stage.
 
 .. _KISSmetrics: http://www.kissmetrics.com/
 
+The code is added to the top of the HTML head.  By default, the
+username of a logged-in user is passed to KISSmetrics.  See
+:data:`ANALYTICAL_AUTO_IDENTIFY`.
+
 
 Required settings
 -----------------

docs/services/mixpanel.rst

@@ -7,6 +7,10 @@ analysis of visitor retention or funnels.
 
 .. _Mixpanel: http://www.mixpanel.com/
 
+The code is added to the bottom of the HTML head.  By default, the
+username of a logged-in user is passed to Mixpanel.  See
+:data:`ANALYTICAL_AUTO_IDENTIFY`.
+
 
 Required settings
 -----------------