Added Quartz n&k data 45 eV to 620 eV.

A. Andrle et al. J. Appl. Cryst. (2021). 54, 402-408 https://doi.org/10.1107/S1600576720016325
Quartz Data https://zenodo.org/record/4118056

launch of the website ocdb.ptb.de

Mo, Ni, Pt, Ru, Ta, Te,  Ni₂ Al₃, Ni₃ Al, NiAl, Pt₂Mo, PtMo, PtTe, RuTa, Ru₃Ta, Ru₃Re, Ru₃W, TaBN, TaTeN

Publication https://doi.org/10.5281/zenodo.5607168
Full data set: doi.org/10.5281/zenodo.5602719