message: Update README.md
  readability formatting
diff: custom board design for beta/prod build
  ## Rev 1 As-Built Files:
  +As-built directory: <br>
  https://github.com/RespiraWorks/pcbreathe/tree/master/NIGHTLY/20200424v2-RELEASE-CANDIDATE-2
  -As-built Schematic:
  +As-built Schematic: <br>
  https://github.com/RespiraWorks/pcbreathe/blob/master/NIGHTLY/20200424v2-RELEASE-CANDIDATE-2/20200424v2-RespiraWorks-Ventilator-Rev1.0-RC2-DWG-SCH.PDF
  -As-built 3D STEP file:
  +As-built 3D STEP file: <br>
  https://github.com/RespiraWorks/pcbreathe/blob/master/NIGHTLY/20200424v2-RELEASE-CANDIDATE-2/20200424v2-RespiraWorks-Ventilator-Rev1.0-RC2-3D-STEP.step
  -Manufacturing Pacakge:
  +Manufacturing Pacakge: <br>
  https://github.com/RespiraWorks/pcbreathe/blob/master/NIGHTLY/20200424v2-RELEASE-CANDIDATE-2/20200424v2-RespiraWorks-Ventilator-Rev1.0-RC2-PKG-TURNKEY.zip
  ## Requesting Hardware for Dev:
  