tweaks and changelog

Author: nicolaskruchten

Diff for: CHANGELOG.md

@@ -4,6 +4,11 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## UNRELEASED
 
+### Added
+
+  - `text_auto` argument to `px.bar`, `px.histogram`, `px.density_heatmap`, `px.imshow` [#3518](https://github.com/plotly/plotly.py/issues/3518)
+  - Deprecated `ff.create_annotated_heatmap`, `ff.create_county_choropleth`, `ff.create_gantt` [#3518](https://github.com/plotly/plotly.py/issues/3518)
+
 ### Updated
   - Updated Plotly.js to from version 2.6.3 to version 2.8.1. See the [plotly.js CHANGELOG](https://github.com/plotly/plotly.js/blob/master/CHANGELOG.md#280----2021-12-10) for more information. Notable changes include:
     - Horizontal color bars

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

@@ -41,12 +41,12 @@ This page describes a [legacy "figure factory" method](/python/figure-factories/
 
 
 #### Required Packages
-`plotly_geo`, `pyshp` and `shapely` must be installed for this figure factory.
+`plotly_geo`, `geopandas`, `pyshp` and `shapely` must be installed for this figure factory to run.
 
 Run the following commands to install the correct versions of the following modules:
 
 ```python
-!pip install plotly-geo
+!pip install plotly-geo==1.0.0
 !pip install geopandas==0.3.0
 !pip install pyshp==1.2.10
 !pip install shapely==1.6.3

Diff for: doc/python/figure-factories.md

@@ -58,6 +58,3 @@ Deprecated "legacy" Figure Factories include:
 
 For more information about the contents of `plotly.figure_factory`, including deprecated methods, please refer to our [API Reference documentation](https://plotly.com/python-api-reference/plotly.figure_factory.html).
 
-```python
-
-```

Diff for: doc/python/heatmaps.md

@@ -48,7 +48,7 @@ Plotly supports two different types of colored-tile heatmaps:
 
 
 <!-- #region -->
-The `px.imshow()` can be used to display heatmaps (as well as full-color images, as its name suggests). It accepts both array-like objects like lists of lists and `numpy` or `xarray` arrays, as well as `pandas.DataFrame` objects.
+The `px.imshow()` function can be used to display heatmaps (as well as full-color images, as its name suggests). It accepts both array-like objects like lists of lists and `numpy` or `xarray` arrays, as well as `pandas.DataFrame` objects.
 
 
 > For more examples using `px.imshow`, including examples of faceting and animations, as well as full-color image display, see the [the `imshow` documentation page](/python/imshow).