* reorganize and update existing HackRF documentation
* include changes suggested by martinling
* Update software support page
* fix typo
* Update acrylic case link
* docs: make adjustments based on feedback from epenelope
* Documentation: Add RF shield installation instructions page.
Add a page with written instructions for installing a RF shield on a HackRF One. Includes pictures of various steps in the process
* Documentation: Add rf_shield_installation.rst that was left out of previous commit.
* Documentation: Move tag in multiple_device_hardware_synch.rst to correct location.
* Documentation: Add edits suggested by straithe to rf_shield instructions