update README to match code

Author: tlangfor

Diff for: README.md

@@ -3,9 +3,5 @@
 An extension of the Slurm command 'seff' designed to handle job arrays and display information in a histogram.             
 seff-array generates two histograms; one for the maximum memory usage of each job in the array, and one for the runtime of each job.
 
-To use seff-array on the job array with ID '12345678', simply run 'seff-array 12345678'.
-You can also use seff-array on a text file containing the results of the command:
+To use seff-array on the job array with ID `12345678`, simply run `seff-array 12345678`.
 
-'sacct -p -j <your_id> --format=JobID,JobName,MaxRSS,Elapsed,ReqMem,ReqCPUS,Timelimit'
-
-To do this, use the '-i' flag: 'seff-array -i <filename.txt>'