Update README.txt

README.txt

+vGRAPPA decomposition algorithm
+
+This algorithm decomposes simultaneously acquired multi-voxel 
+data to their respective origin regions. Based on the split-slice GRAPPA code by Steen Moeller, University of Minnesota, USA.
+
+Author: L.T. Riemann (Physikalisch-Technische Bundesanstalt, PTB)
+version 0.1
+Date: 2021/05/08
+
+Please cite as: L.T.Riemann, C.S.Aigner, R.Mekle, S.Schmitter, B.Ittermann, A.Fillmer; 
+"Fourier-based decomposition approach for simultaneous acquisition of\""
+"H spectra from two voxels in vivo at short echo times", Proc. Int. Soc. Magn. Reson. Med. 2021:0071
+
+
 Recon_Spectro_MB.m is the program that executes the vGRAPPA algorithm
 
 one has to insert the low SNR single-band data of both voxels as .dat file (SIEMENS raw data format)