Add warning about outdated code and security concerns

Merge pull request #19 from birlorg/dependabot/pip/python/babel-2.9.1

Bump babel from 2.9.0 to 2.9.1 in /python

Merge pull request #17 from birlorg/dependabot/pip/python/py-1.10.0

Bump py from 1.8.1 to 1.10.0 in /python

Update README.txt

Merge pull request #13 from birlorg/dependabot/pip/python/psutil-5.6.6

Bump psutil from 5.4.3 to 5.6.6 in /python

Update requirements.txt

Merge pull request #11 from tjyang/trunk

openssl-sys and hmac were missed in Cargo.toml

lots of goolging without undestand really why the changes ;)

hmac crate reference was missed

Merge pull request #8 from rjc/markdown

Fix markdown