Certbot-dns-wedos

Fix snap
Fix links in README
Small tweaks in README
Move variable and add basic info to __init__.py
Better error handling with request

Updating minor things, especially README.md

Rewriting the script for wedos certification.
Add/change:
++ more secure
++ redesigned code for better optimization
++ fix bugs
++ added on PyPI

Remove:
-- finalize
-- arguments and credential at same time