Fix #2604 Add missing commands to help

[krisgesling]

Description

• Adds some missing commands to the mycroft-help list
• minor restructure for clarity.
• change more info link to point to documentation

Fixes #2604

Consideration should also be given to adding a mycroft --help option.

How to test

Run mycroft-help and ensure the output and descriptions are clear.

Contributor license agreement signed?

• CLA (Whether you have signed a CLA - Contributor Licensing Agreement

[devops-mycroft]

Voight Kampff Integration Test Failed (Results)

[devops-mycroft]

Voight Kampff Integration Test Succeeded (Results)

[forslund]

Looks good and works as intended.

A couple of small things that is probably outside the scope here:

• The first character is not always capitalized (seemingly randomly). Might be something that can be addressed as well (but may be outside the scope of this PR).
• The venv-activate.sh is mentioned here, it is runnable like a shell script but will only print the instruction to source it.

Maybe a couple of newbie friendly issues could be created for these changes?

[krisgesling]

Good call regarding capitalization.

• The venv-activate.sh is mentioned here, it is runnable like a shell script but will only print the instruction to source it.

I can't see a direct reference to that shell script. However the mycroft-venv-activate is a weird one as it's only handled through aliases. If you run deactivate instead of mycroft-venv-deactivate then the aliasing gets out of sync and you only have mycroft-venv-deactivate available...

I think we need to reconsider how we handle that. But outside the scope of this PR and I've left it in for now.

[devops-mycroft]

Voight Kampff Integration Test Succeeded (Results)