DOC: Convert README to markdown, add wasm links

Demo app, python, javascript docs.

Order language installation into from likely most used to least used.

README.md

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+# ITKMorphologicalContourInterpolation
+
+![Build, test, package](https://github.com/KitwareMedical/ITKMorphologicalContourInterpolation/workflows/Build,%20test,%20package/badge.svg)
+
+[![PyPI](https://img.shields.io/pypi/v/itk-morphologicalcontourinterpolation.svg)](https://pypi.python.org/pypi/itk-morphologicalcontourinterpolation)
+
+[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://github.com/KitwareMedical/ITKMorphologicalContourInterpolation/blob/master/LICENSE)
+
+## Overview
+
+An [ITK](https://itk.org)-based implementation of morphological contour interpolation based off the paper:
+
+Albu AB1, Beugeling T, Laurendeau D.
+"A morphology-based approach for interslice interpolation of anatomical slices from volumetric images."
+IEEE Trans Biomed Eng.
+2008 Aug;55(8):2022-38.
+doi: 10.1109/TBME.2008.921158.
+
+👨‍💻 [`Live API Demo`] ✨
+
+Documentation can be found in the [Insight Journal article](https://www.insight-journal.org/browse/publication/977):
+
+Zukić D., Vicory J., McCormick M., Wisse L., Gerig G., Yushkevich P., Aylward S.
+"ND Morphological Contour Interpolation",
+The Insight Journal. January-December, 2016.
+https://hdl.handle.net/10380/3563
+https://insight-journal.org/browse/publication/977
+
+- 🕮 [`Wasm Python Documentation`] 📚
+- 🕮 [`JavaScript Documentation`] 📚
+
+## Installation
+
+### Python
+
+To install the wasm Python packages:
+
+```sh
+pip install itkwasm-morphological-contour-interpolation
+```
+
+To install the native Python packages:
+
+```sh
+python -m pip install --upgrade pip
+python -m pip install itk-morphologicalcontourinterpolation
+```
+
+### JavaScript
+
+Install the JavaScript/TypeScript package:
+
+```sh
+npm install @itk-wasm/morphological-contour-interpolation
+```
+
+### C++
+
+Since ITK 4.11.0, this module is available in the ITK source tree as a remote module. To enable it, set:
+
+```
+Module_MorphologicalContourInterpolation:BOOL=ON
+```
+
+in ITK's CMake build configuration.
+
+## License
+
+This software is distributed under the Apache 2.0 license. Please see the *LICENSE* file for details.
+
+## Acknowledgements
+
+This work is supported by NIH grant R01 EB014346, "Continued development and maintenance of the ITK-SNAP 3D image segmentation software."
+
+[`Live API Demo`]: https://kitwaremedical.github.io/ITKMorphologicalContourInterpolation/ts/app/
+[`Wasm Python Documentation`]: https://kitwaremedical.github.io/ITKMorphologicalContourInterpolation/py/docs/
+[`JavaScript Documentation`]: https://kitwaremedical.github.io/ITKMorphologicalContourInterpolation/ts/docs/