Merge branch 'doc-prod'

Author: nicolaskruchten

doc/apidoc/plotly.express.rst

@@ -32,6 +32,7 @@ plotly's high-level API for rapid figure generation. ::
     bar_polar
     violin
     box
+    ecdf
     strip
     histogram
     pie

doc/python/choropleth-maps.md

@@ -110,7 +110,7 @@ fig.show()
 
 ### Indexing by GeoJSON Properties
 
-If the GeoJSON you are using either does not have an `id` field or you wish you use one of the keys in the `properties` field, you may use the `featureidkey` parameter to specify where to match the values of `locations`.
+If the GeoJSON you are using either does not have an `id` field or you wish to use one of the keys in the `properties` field, you may use the `featureidkey` parameter to specify where to match the values of `locations`.
 
 In the following GeoJSON object/data-file pairing, the values of `properties.district` match the values of the `district` column:
 

doc/python/facet-plots.md

@@ -129,7 +129,7 @@ fig.show()
 
 *introduced in plotly 4.12*
 
-The `.add_trace()` method can be used to add a copy of the same trace to each facet, for example an overall linear regression line as below. The `legendgroup`/`showlegend` pattern below is recommended to avoid having a separate legend item for each copy of the trace.
+The `.add_trace()` method can be used to add a copy of the same trace to each facet, for example an overall linear regression line as below. The `legendgroup`/`showlegend` pattern below is recommended to avoid having a separate legend item for each copy of the trace. Note that as of v5.2.1, there is [a built-in option to add an overall trendline to all facets](https://plotly.com/python/linear-fits/) that uses this technique under the hood.
 
 ```python
 import plotly.express as px