Make rasterio optional (#31)

* Make rasterio optional

* Make hypercoast optional

* Skip fiona

Author: giswqs

README.md

@@ -1,5 +1,6 @@
 # pygis
 
+[![image](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/opengeos/pygis/HEAD)
 [![image](https://img.shields.io/pypi/v/pygis.svg)](https://pypi.python.org/pypi/pygis)
 [![image](https://img.shields.io/conda/vn/conda-forge/pygis.svg)](https://anaconda.org/conda-forge/pygis)
 [![image](https://pepy.tech/badge/pygis)](https://pepy.tech/project/pygis)
@@ -8,13 +9,9 @@
 [![image](https://img.shields.io/badge/YouTube-Channel-red)](https://www.youtube.com/c/QiushengWu)
 [![image](https://img.shields.io/twitter/follow/giswqs?style=social)](https://twitter.com/giswqs)
 
-**A Python package for installing optional dependencies for geemap and leafmap.**
+**A Python package for installing commonly used packages for GIS programming.**
 
 - Free software: MIT license
 - Documentation: https://pygis.gishub.org
 
 [![](https://i.imgur.com/bKFts2R.png)](https://pygis.gishub.org)
-
-## Credits
-
-This package was created with [Cookiecutter](https://github.com/cookiecutter/cookiecutter) and the [giswqs/pypackage](https://github.com/giswqs/pypackage) project template.