Set the trademark macro once as a prolog to all RST files. Reduces the
possibility of error by removing the requirement for the trademark macro
within every RST.
Add distinction between DNS Aliases for Direct Mode vs NAT Mode to
describe the feature in ar71xx PR#573.
Include small format changes for firmware install steps.
Include note for tunneling using nodes with built-in switches.
Minor formatting tweaks.
Minor formatting changes on Installing Firmware.
Minor formatting changes to four sections, making formats consistent
across sections.
Format Install Firmware section consistently.
More formatting consistency checks in additional doc sections.
Steve Lewis AB7PA