Update README.md

Author: vetlewi

README.md

@@ -61,7 +61,8 @@ The options:
 
 ### Configuration and calibration file
 The sorting code requires a calibration/configuration file.
-This file describes the data acquisition system, the number of detectors, what detector are connected to what DAQ channel, and the calibration of the detectors.
+This file describes the data acquisition system, the number of detectors, what detector are connected to what DAQ channel, and the calibration of the detectors
 Examples of these files are:
 * `cal/LaBr250MHz.yaml` for OSCAR configured with 250 MHz XIA modules for LaBr$_3$:Ce, while the E detector was read out with a $500$ MHz module.
 * `cal/LaBr500MHz.yaml` is for a OSCAR setup where the LaBr$_3$:Ce detectors are read out with 500 MHz modules and all Si detectors with 250 MHz modules.
+