update exerciseC

exercises/exerciseC/run_with_all_configurations.sh

@@ -1,7 +1,8 @@
-# This is bash, it executes the python script multiple times
-for i in {1..10}
+# This is bash
+# It runs the python script multiple times with different arguments
+for i in {1..5}  # Number of processes
 do
-    for j in {1..10}
+    for j in {1..5}  # Number of threads
     do
         python process_images.py $i $j images/*
     done