update example

Author: LiamConnors

doc/python/v6-changes.md

@@ -74,25 +74,25 @@ The following example shows how to use `layout.title.font`:
 ```python
 import plotly.graph_objects as go
 
-trace = go.Bar(
-    x=['A', 'B', 'C', 'D'],
-    y=[10, 15, 13, 17]
+fig = go.Figure(
+    data=[
+      go.Bar(
+        x=["A", "B", "C", "D"],
+        y=[10, 15, 13, 17]
+        )
+    ],
+    layout=dict(
+      title=dict(
+        text="Chart Title",
+        font=dict(
+          size=40
+          )
+        )
+      ),
+    # Previously the title font could be set like this:
+    # titlefont=dict(size=40)
 )
 
-layout = go.Layout(
-    title=dict(
-        text='Chart Title',
-        font=dict(size=40)
-    )
-)
-
-# Previously this could be written as
-#     titlefont=dict(
-#        size=40
-#    )
-
-fig = go.Figure(data=[trace], layout=layout)
-
 fig.show()
 ```