pmeier/pystiche: Accepted in pyOpenSci :tada:

This is the first release after the successful peer review (#418). It mainly contains small bug fixes and improvements to the documentation detailed below. Furthermore, as of this release pystiche will be published to PyPI easing the installation process.

• fix pystiche.image.edge_to_image_size for horizontal edges (#381)
• fix and robustify pystiche.misc.download_file in case of an error or corrupt download (#410, #412)
• fix demo images from Pixabay (#411)

• generic improvements to the README and the contributing guidelines (#400)
• fix installation instructions (#406)
• add citation information to the README (#408)
• add an example image and usage snippet to the README (#413)
• add inline examples to core functionalities (#415)

• remove the double namespacing from pystiche.demo (#414)
  • pystiche.demo.demo_images() was renamed to pystiche.demo.images()
  • pystiche.demo.demo_logger() was renamed to pystiche.demo.logger()