Readthedocs Documentation (#303) (#304)

* Update PROGRESS.md

* documentation

* Update index.rst

* Update installation.rst

* Update features.rst

* smaller headers

* Update overview.rst

* Update codebase.rst

* Update contribute.rst

* Added docs badge to readme

* Update ux.rst

* Add files via upload

* Changed img and gif for ux doc

* updated keyboard shortcut headers

* Update README.md

* Update changelog.rst

Co-authored-by: Logan McNichols <loganamcnichols@gmail.com>
Co-authored-by: Kalen Goo <ktwmgoo@gmail.com>

Author: thegooman

README.md

@@ -1,8 +1,10 @@
+**[Documentation](https://jupyterlab-tabular-data-editor.readthedocs.io/)** | **[Contributing](#contributing)**
 # jupyterlab-tabular-data-editor
 
 ### Manipulate your tabular data responsively and effectively within JupyterLab.
 
-[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/jupytercalpoly/jupyterlab-tabular-data-editor/master?urlpath=lab) ![Github Actions Status](https://github.com/jupytercalpoly/jupyterlab-tabular-data-editor/workflows/Build/badge.svg) ![npm](https://img.shields.io/npm/v/jupyterlab-tabular-data-editor) ![npm](https://img.shields.io/npm/dt/jupyterlab-tabular-data-editor?color=orange)
+[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/jupytercalpoly/jupyterlab-tabular-data-editor/master?urlpath=lab) ![Github Actions Status](https://github.com/jupytercalpoly/jupyterlab-tabular-data-editor/workflows/Build/badge.svg) [![Documentation Status](https://readthedocs.org/projects/jupyterlab-tabular-data-editor/badge/?version=latest)](https://jupyterlab-tabular-data-editor.readthedocs.io/en/latest/?badge=latest)
+ ![npm](https://img.shields.io/npm/v/jupyterlab-tabular-data-editor) ![npm](https://img.shields.io/npm/dt/jupyterlab-tabular-data-editor?color=orange)
 
 ### EXPERIMENTAL: This extension is still in alpha. The API is subject to frequent changes.
 
@@ -16,7 +18,7 @@ Read more about the Jupyter Tabular Data Editor Extension in our [press release]
 
 Check out our [current progress and future plans](https://github.com/jupytercalpoly/jupyterlab-tabular-data-editor/blob/master/PROGRESS.md)!
 
-See our progress as of 08/07/2020 from these [slides](https://docs.google.com/presentation/d/1ZGjFb3RkoR5Cc39DDdtU-AYAoYMNVMyUM9g80qgNzos/edit?usp=sharing)!
+See our progress as of 08/27/2020 from these [slides](https://docs.google.com/presentation/d/12M3riXxlj1GouMA5mIt6B1QbdA7MSt_KNf8h545I2oI/edit?usp=sharing)!
 
 ## Feature Showcase
 <details>

design/gifs/Toolbar.png

@@ -0,0 +1,50 @@
+.. _codebase:
+
+Codebase Orientation
+-----------------
+This codebase was adapted from JupyterLab's `csvviewer <https://github.com/jupyterlab/jupyterlab/tree/master/packages/csvviewer>`_ and `csvviewer-extension <https://github.com/jupyterlab/jupyterlab/tree/master/packages/csvviewer-extension>`_ packages.
+
+Directories
+~~~~~~~~~~~
+The repository contains a number of top-level directories, the contents of which
+are described here.
+
+Source Code: ``src/``
+^^^^^^^^^^^^^^^^^^^^^^^^^^^
+This contains the primary TypeScript files for this extension, which are compiled to JavaScript.
+
+Binder setup: ``binder/``
+^^^^^^^^^^^^^^^^^^^^^^^^^
+This contains an environment specification for ``repo2docker`` which allows
+the repository to be tested on `mybinder.org <https://mybinder.org>`__.
+
+Demo: ``demo/``
+^^^^^^^^^^^^^^^^^^^
+The ``demo/`` directory contains sample csv files and Jupyter notebooks that highlight some features of this extension.
+
+Design: ``design/``
+^^^^^^^^^^^^^^^^^^^
+A directory containing a series of design documents and prototypes motivating various
+choices made in the course of building the Tabular Data Editor.
+
+Documentation: ``docs/``
+^^^^^^^^^^^^^^^^^^^^^^^^
+This directory contains the Sphinx project for this documentation.
+You can create an environment to build the documentation using ``conda create -f environment.yml``,
+and you can build the documentation by running ``make html``.
+The entry point to the built docs will then be in ``docs/build/index.html``.
+
+Styling: ``style/``
+^^^^^^^^^^^^^^^^^^^
+This directory contains the icon assets and css styles for this extension.
+
+Testing: ``test/``
+^^^^^^^^^^^^^^^^^^^
+Tests for the TypeScript files in the ``src/`` directory.
+These test files pull in the TypeScript sources and exercise their APIs.
+
+Run ``jlpm test`` from the root directory to run all tests for this extension
+
+Test Utilities: ``testutils/``
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+A small ``npm`` package which is aids in running the tests in ``tests/``.