add documentation about disabled apps

[cmulk]

add documentation about disabled apps

Description

add documentation about disabled apps, and in particular using the disable feature for soh

Related Issue

If applicable, please link to the issue here (e.g., #123).

Type of Change

Please select the type of change your pull request introduces:

• Bugfix
• New feature
• Documentation update
• Other (please describe):

Checklist

• This PR conforms to the process detailed in the Contributing Guide.
• I have included no proprietary/sensitive information in my code.
• I have performed a self-review of my code.
• I have commented my code, particularly in hard-to-understand areas.
• I have made corresponding changes to the documentation.
• My changes generate no new warnings.
• I have tested my code.

Additional Notes

Please provide any additional information or context for your pull request here.

[glattercj]

LGTM

[GhostofGoes]

1 nit, otherwise LGTM

[GhostofGoes]

Stray >