Update README.md

README.md

@@ -131,15 +131,15 @@ python umbrella_integration.py -i infile -o outfile -b binwidth
 
 -i infile 
 	name of input file, if file is not in the same directory as 
-        the script, the full path needs to be given. (see below for details on
-        the format of the input file). 
+    the script, the full path needs to be given. (see below for details on
+    the format of the input file). 
 -b bin_width
 	the bin width used for 'binning derivatives' when calculating the PMF 
-        (ie when combining the data from the different windows). 
-        if -b is not given, the default of 0.2 (nm) is used. 
-        This is independent of the spacing between umbrellas/windows used 
-        in the umbrella sampling simulations. 
-        NOTE: the bin widths affects the final PMF so this 
+    (ie when combining the data from the different windows). 
+    if -b is not given, the default of 0.2 (nm) is used. 
+    This is independent of the spacing between umbrellas/windows used 
+    in the umbrella sampling simulations. 
+    NOTE: the bin widths affects the final PMF so this 
 	should be carefully considered (see also Kästner & Thiel 2005). 
         Instead of the bin_width -n and -m can be used to provide 
         the number of binds and the range (min,max) for the