DOC: Clarify how example 3 uses the input parameters

README.md

@@ -128,18 +128,19 @@ input parameters.
 This example is nearly the same as the previous example, but instead
 of using the the task ID as the input, it uses a long list of record
 IDs.  The record ID is read by the program to find the corresponding
-input parameters, and saves the result.
+input parameters, the program calculates the result from the
+parameters and saves the result in a directory.
 
-Results are saved into a directory and, once all records are
-completed, the results are aggregated into a single results file.
+Once all records are completed, the results from the directory are
+aggregated into a single results file.
 
 GNU Parallel automatically feeds record IDs to task workers as the
 task workers complete records and become available.
 
 ```sh
 # From the command-line
 cd ~/parallel-slurm/examples
-rm -f joblog submit.out
+rm -rf joblog submit.out results/ results.csv
 for i in {1..5}; do sbatch 03-submit-param-sweep.slurm; done
 touch submit.out && tail -f submit.out
 # Hit Ctrl+C to exit