Reorganize README and add link to migration guide

Author: jonmmease

Diff for: README.md

@@ -1,28 +1,6 @@
 # plotly.py
 
-## Instal Plotly 3.0.0rc10
-To install and enable with Jupyter or Jupyter lab, run:
-```
-pip install plotly==3.0.0rc9
-pip install "notebook>=5.3" "ipywidgets>=7.2"  # only necessary for Jupyter Notebook environments
-```
-
-If you're using older versions of `notebook` or `ipywidgets` you may need to manually activate the widget extensions (this should not be needed for `notebook>=5.3` and `ipywidgets>=7.2`)
-
-```
-jupyter nbextension enable --py widgetsnbextension --sys-prefix
-jupyter nbextension enable --py plotlywidget --sys-prefix
-```
-
-In addition, to add JupyterLab support run the following commands
-
-```
-pip install jupyterlab
-export NODE_OPTIONS=--max-old-space-size=4096
-jupyter labextension install @jupyter-widgets/jupyterlab-manager # install the Jupyter widgets extension
-jupyter labextension install plotlywidget
-```
-
+## Overview
 [plotly.py](https://plot.ly/d3-js-for-python-and-pandas-charts/) is an interactive, browser-based graphing library for Python :sparkles:
 
 Built on top of [plotly.js](https://github.com/plotly/plotly.js), `plotly.py` is a high-level, declarative charting library. plotly.js ships with over 30 chart types, including scientific charts, 3D graphs, statistical charts, SVG maps, financial charts, and more.
@@ -39,13 +17,41 @@ Built on top of [plotly.js](https://github.com/plotly/plotly.js), `plotly.py` is
 ***
 
 - [Online Documentation](https://plot.ly/python)
-- [`contributing.md`](https://github.com/plotly/python-api/blob/master/contributing.md)
+- [Contributing](contributing.md)
+- [Changelog](CHANGELOG.md)
 - [Code of Conduct](CODE_OF_CONDUCT.md)
+- [Version 3 Migration Guide](migration-guide.md)
 - [New! Announcing Dash](https://medium.com/@plotlygraphs/introducing-dash-5ecf7191b503)
 - [Community](https://community.plot.ly/c/api/python)
 
 ***
 
+## Installation Plotly 3.0.0rc11
+To install and enable with Jupyter or Jupyter Lab, run:
+```
+pip install plotly==3.0.0rc11
+pip install "notebook>=5.3" "ipywidgets>=7.2"  # only necessary for Jupyter Notebook environments
+```
+
+If you're using older versions of `notebook` or `ipywidgets` you may need to manually activate the widget extensions (this should not be needed for `notebook>=5.3` and `ipywidgets>=7.2`)
+
+```
+jupyter nbextension enable --py widgetsnbextension --sys-prefix
+jupyter nbextension enable --py plotlywidget --sys-prefix
+```
+
+In addition, to add JupyterLab support run the following commands
+
+```
+pip install jupyterlab
+export NODE_OPTIONS=--max-old-space-size=4096
+jupyter labextension install @jupyter-widgets/jupyterlab-manager # install the Jupyter widgets extension
+jupyter labextension install plotlywidget
+```
+
+If you're migrating from plotly.py version 2, please check out the [migration guid](migration-guide.md)
+
+## Copyright and Licenses
 Code and documentation copyright 2017 Plotly, Inc.
 
 Code released under the [MIT license](LICENSE.txt).