Fix outdated documenation segments

README.rst

@@ -31,11 +31,11 @@ like:
 
         ship = tasks.UpdateView(fields=["tracking_code"])
 
-        def has_email(self, task):
+        def has_email(self):
             if self.email:
                 return [self.send_tracking_code]
 
-        def send_tracking_code(self, task):
+        def send_tracking_code(self):
             send_mail(
                 subject="Your tracking code",
                 message=self.tracking_code,

docs/conf.py

@@ -73,7 +73,8 @@ def linkcode_resolve(domain, info):
         "https://docs.djangoproject.com/en/stable/",
         "https://docs.djangoproject.com/en/stable/_objects/",
     ),
-    "celery": ("https://celery.readthedocs.io/en/stable/", None),
+    "dramatiq": ("https://dramatiq.io/", None),
+    "celery": ("https://docs.celeryproject.org/en/stable/", None),
     "graphviz": ("https://graphviz.readthedocs.io/en/stable/", None),
 }
 

docs/index.rst

@@ -25,12 +25,12 @@ may look like:
         checkout [color=black fontcolor=black style="filled, rounded"]
         "has email" [color=black fontcolor=black style=filled]
         ship [color=black fontcolor=black style="filled, rounded"]
-        end [color=black fontcolor=black style=filled]
+        end [color=black fontcolor=black style=filled peripheries=2]
         "send tracking code" [color=black fontcolor=black style=filled]
         checkout -> ship
         ship -> "has email"
         "has email" -> "send tracking code"
-        "has email" -> end
+        "has email" -> end [color="#888888"]
         "send tracking code" -> end
     }
 
@@ -55,15 +55,15 @@ may look like:
             if self.email:
                 return [self.send_tracking_code]
 
-        def send_tracking_code(self, task):
+        def send_tracking_code(self):
             send_mail(
                 subject="Your tracking code",
                 message=self.tracking_code,
                 from_email=None,
                 recipient_list=[self.email],
             )
 
-        def end(self, task):
+        def end(self):
             pass
 
         edges = [