[MIG] web_widget_bokeh_chart: Migration to 12.0

web_widget_bokeh_chart/readme/CONTRIBUTORS.rst

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+* Jordi Ballester Alomar <jordi.ballester@eficent.com>
+* Lois Rilo Antelo <lois.rilo@eficent.com>
+* Artem Kostyuk <a.kostyuk@mobilunity.com>

web_widget_bokeh_chart/readme/CREDITS.rst

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+* This module uses the library `Bokeh <https://github.com/bokeh/bokeh>`__
+  which is under the open-source BSD 3-clause "New" or "Revised" License.
+  Copyright (c) 2012, Anaconda, Inc.
+* Odoo Community Association (OCA)

web_widget_bokeh_chart/readme/DESCRIPTION.rst

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+This module add the possibility to insert Bokeh charts into Odoo standard views.
+
+.. image:: /web_widget_bokeh_chart/static/description/example.png
+   :alt: Bokeh Chart inserted into an Odoo view
+   :width: 600 px
+
+`Bokeh <https://bokeh.pydata.org>`__ is a Python interactive visualization
+library that targets modern web browsers for presentation. Its goal is to
+provide elegant, concise construction of basic exploratory and advanced
+custom graphics in the style of D3.js, but also deliver this capability with
+high-performance interactivity over very large or streaming datasets. Bokeh
+can help anyone who would like to quickly and easily create interactive
+plots, dashboards, and data applications.
+
+If you want to see some samples of bokeh's capabilities follow this `link
+<https://bokeh.pydata.org/en/latest/docs/gallery.html>`_.

web_widget_bokeh_chart/readme/INSTALL.rst

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+You need to install the python bokeh library::
+
+    pip3 install bokeh==0.12.7

web_widget_bokeh_chart/readme/USAGE.rst

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+To insert a Bokeh chart in a view proceed as follows:
+
+#. Declare a text computed field like this::
+
+    bokeh_chart = fields.Text(
+        string='Bokeh Chart',
+        compute='_compute_bokeh_chart',
+    )
+
+#. In its computed method do::
+
+    def _compute_bokeh_chart(self):
+        for rec in self:
+            # Design your bokeh figure:
+            p = figure()  # import that as `from bokeh.plotting import figure`
+            line = p.line([0, 2], [1, 8], line_width=5)
+            # (...)
+            # `p.html.data` contains both markup and the script of a chart.
+            rec.bokeh_chart = p.html.data
+
+#. In the view, add something like this wherever you want to display your
+   bokeh chart::
+
+    <div>
+        <field name="bokeh_chart" widget="bokeh_chart" nolabel="1"/>
+    </div>