Consolidate firmware upload troubleshooting tips into a single section.
Also change bullet list character throughout.
* refer to deep dive for info on autodistance setting
* clarify auto-distance setting
* callout auto-distance caution
* include reference for testing distance settings
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.
Rework the Channel Planning section to clarify, expand, and illustrate
the importance of channel plans and frequency coordination.
Clarify Radio Spectrum section
Add HeyWhatsThat Profiler to Network Modeling section
Clarify the explanation of equipment size and gain for the different
bands.
Tweak the description of antenna polarization to clarify.
Clarify the statement about link quality so it is adequate for required
applications.
Added Network Design Guide sections, and edited a few Getting Started Guide areas. Both guidebooks are now part of the single existing AREDN documentation repository.