Update readme.md

data/readme.md

 The measurement dataset is split into two parts --- the rural and the urban subset of the drive-test campaign. 
 
-In each folder, the measurements are bundled on a per-cell basis. 
+In each folder, the measurements are bundled on a per-cell basis. Correspondingly, we have a distinct .csv file for each cell.
 
-Each row of a particular .csv file corresponds to a UE measurement and includes the following values:
+Each row of a .csv file corresponds to a particular UE measurement and includes the following values:
 *  TA - Timing Advance Measurement (k)
 *  RSRP - The obtained RSRP (reference signal received power) at the measurement location. Intended for baseline comparison with baseline approaches. 
 *  x - Longitude component of distance to BS in EPSG:31287 coordinate system.