Update legend.md

Author: LiamConnors

doc/python/legend.md

@@ -199,18 +199,20 @@ Set the width of hozitonal legend entries by setting `entrywidth`. Here we set i
 import plotly.express as px
 
 df = px.data.gapminder().query("year==2007")
-fig = px.scatter(df, x="gdpPercap", y="lifeExp", color="continent",
-    size="pop", size_max=45, log_x=True)
-
-fig.update_layout(legend=dict(
-    orientation="h",
-    entrywidth=70,
-    yanchor="bottom",
-    y=1.02,
-    xanchor="right",
-    x=1
-))
-
+fig = px.scatter(
+    df,
+    x="gdpPercap",
+    y="lifeExp",
+    color="continent",
+    size="pop",
+    size_max=45,
+    log_x=True,
+)
+fig.update_layout(
+    legend=dict(
+        orientation="h", entrywidth=70, yanchor="bottom", y=1.02, xanchor="right", x=1
+    )
+)
 fig.show()
 ```