Edit and expand the documentation for this custom component.
Include examples of entity and attribute values.
Explicitly enumerate supported service calls.
Add example of creating a template-based sensor for entity attributes.
Other language edits as needed for consistency and correct usage.
Edit and expand the documentation for this custom component. Include examples of entity and attribute values. Explicitly enumerate supported service calls. Add example of creating a template-based sensor for entity attributes. Other language edits as needed for consistency and correct usage.