update titles as strings

Author: LiamConnors

Diff for: doc/python/county-choropleth.md

@@ -120,7 +120,14 @@ fig = ff.create_choropleth(
     fips=fips, values=values, scope=['CA', 'AZ', 'Nevada', 'Oregon', ' Idaho'],
     binning_endpoints=[14348, 63983, 134827, 426762, 2081313], colorscale=colorscale,
     county_outline={'color': 'rgb(255,255,255)', 'width': 0.5}, round_legend_values=True,
-    legend_title='Population by County', title='California and Nearby States'
+    legend=dict(
+      title=dict(
+        text='Population by County'
+      )
+    ),
+    title=dict(
+      text='California and Nearby States'
+    )
 )
 fig.layout.template = None
 fig.show()

Diff for: doc/python/pandas-backend.md

@@ -55,7 +55,7 @@ import pandas as pd
 pd.options.plotting.backend = "plotly"
 
 df = pd.DataFrame(dict(a=[1,3,2], b=[3,2,1]))
-fig = df.plot(title="Pandas Backend Example", template="simple_white",
+fig = df.plot(title=dict(text="Pandas Backend Example"), template="simple_white",
               labels=dict(index="time", value="money", variable="option"))
 fig.update_yaxes(tickprefix="$")
 fig.show()

Diff for: doc/python/ternary-contour.md

@@ -76,7 +76,9 @@ fig = ff.create_ternary_contour(np.array([Al, Y, Cu]), enthalpy,
                                 ncontours=20,
                                 colorscale='Viridis',
                                 showscale=True,
-                                title='Mixing enthalpy of ternary alloy')
+                                title=dict(
+                                  text='Mixing enthalpy of ternary alloy'
+                                ))
 fig.show()
 ```
 

Diff for: doc/python/trisurf.md

@@ -59,7 +59,7 @@ simplices = tri.simplices
 
 fig = ff.create_trisurf(x=x, y=y, z=z,
                          simplices=simplices,
-                         title="Torus", aspectratio=dict(x=1, y=1, z=0.3))
+                         title=dict(text="Torus"), aspectratio=dict(x=1, y=1, z=0.3))
 fig.show()
 ```
 
@@ -90,7 +90,7 @@ simplices = tri.simplices
 fig = ff.create_trisurf(x=x, y=y, z=z,
                          colormap="Portland",
                          simplices=simplices,
-                         title="Mobius Band")
+                         title=dict(text="Mobius Band"))
 fig.show()
 ```
 
@@ -122,7 +122,7 @@ fig = ff.create_trisurf(x=x, y=y, z=z,
                          colormap=['rgb(50, 0, 75)', 'rgb(200, 0, 200)', '#c8dcc8'],
                          show_colorbar=True,
                          simplices=simplices,
-                         title="Boy's Surface")
+                         title=dict(text="Boy's Surface"))
 fig.show()
 ```