Began theory
Merge branch 'master' of github.com:HappyEmu/physics-reports
Cropped diagram pdfs

	modified:   exp5/report/diag/3A.pdf
	modified:   exp5/report/diag/5A.pdf
	modified:   exp5/report/diag/65A.pdf
	modified:   exp5/report/diag/8A.pdf
	modified:   exp5/report/diag/measurements_amplitudes.pdf