List of toxic chemicals and toxic gases

Specially designed for use in Protest Bots
(https://medium.com/@samplereality/a-protest-bot-is-a-bot-so-specific-you-cant-mistake-it-for-bullshit-90fe10b7fbaa)
List of famous authors, last name only
Merge pull request #25 from samplereality/master

List of toxic chemicals and toxic gases