docs: Chaosblade documentation improvement program.

[Super-long]

Issue Description

The chaosblade documentation has received a lot of flack for lacking a good documentation for a tool that is known for its simplicity and power.

1. https://harness.io/blog/devops/chaos-engineering-tools/
2. https://www.gremlin.com/community/tutorials/chaos-engineering-tools-comparison/#chaosblade
3. ...

Many times I've tried to use certain experimental scenarios without adequate documentation and had to extrapolate through the code to see how the commands might be used.

It's a long process that can't be done by one person in a few days. Everyone who uses a command that doesn't exist in the documentation can contribute and together we can make chaosblade easy to use and powerful!

1. Translation of existing documents into English： #721

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The current idea is this: create a cmd directory under docs, each action is a separate file, the file describes the role of each parameter and gives a simple example

[MandssS]

I'm very glad to see the issue you raised, which coincides with what we want to do, but we hope that the form of presentation may be different from yours, you can pay attention this issue and participate: https://github.com/chaosblade-io/chaosblade-website/issues/49

[MandssS]

We have made a very exhaustive list. If you are interested, you are welcome to contribute ： chaosblade-io/community/issues/3