add things
	new file:   exp11/data/fits_ar_1.nb
	new file:   exp11/data/fits_ar_2.nb
	renamed:    exp11/data/fits.nb -> exp11/data/fits_co2_1.nb
	new file:   exp11/data/fits_co2_2.nb
	new file:   exp11/data/fits_n_1.nb
	new file:   exp11/data/fits_n_2.nb
	modified:   exp11/data/oscillations.xlsx
	modified:   exp11/data/readings.xlsx
del
Merge branch 'master' of github.com:HappyEmu/physics-reports

Conflicts:
	exp11/data/oscillations.xlsx