expected input in json file : "tolerance": true,

but chaos init tolerance input is written as "tolerance": "True"

Hey guys, really enjoying using this project.

Noticed you built a Slack integration in this PR: Add slack notification #21

It would be fantastic if the README details how I might be able to wire up Chaos Lambda running on my AWS account with my Slack. Any thoughts on how soon this can get done?

• fix warnings (incompatibility with 1.8.12)
• CI updates with doxygen 1.8.13 (vs. 1.8.12)
• CI doc tests
• API doc generation in gh-source

see chaostoolkit/chaostoolkit#160

If you accidentally refer to a file that is not executable, the toolkit responds with the following message when doing a validate or run command:

[2020-01-30 16:00:27 ERROR] path 'None' cannot be found, in activity 'my-activity'

If possible it would be nice if the toolkit pointed out that you were refe

This repo doesn't currently have any tests. That's OK as a proof of concept.

If users find it useful and depend on it then we should write tests and have them automatically run against pull requests so that it's easier to review changes with increased confidence.