Adds run paht in plot title of knife-edge scans

knife_edge.py

@@ -75,6 +75,7 @@ def knife_edge(nrun, axisKey='scannerX', signalKey='FastADC4peaks', p0=None, ful
             lh.set_alpha(1)
         plt.ylabel(signalKey)
         plt.xlabel(axisKey + ' position [mm]')
+        plt.title(nrun.attrs['runFolder'])
         plt.tight_layout()
     if full:
         return popt, pcov