* Fixed indentation error in `facts-demo.yml` example.
`content` and `dest` should be indented under the `copy` module.
* Updated indentation of copy module in `facts-demo.yml` example.
Updated indentation of copy module in `facts-demo.yml` to be inline with its name.
* Add anchors to some guides and all module categories
This is required if we want to use *absolute* :ref: references instead of *relative* :doc: references.
* Update the Cisco ACI Guide reference
* Add `aci_guide` anchor
* Add `network_guide` anchor
* Add category anchor
* Improve readability
* Fix small typo
