Revert attempt to switch plate output format. It worked, but introduced a bug in graph filtering I don't want to chase down

src/main/java/PlateFileWriter.java

@@ -59,7 +59,7 @@ public class PlateFileWriter {
             }
         }
 
-        //this took forever, and I don't use it, because it makes reading data in a huge pain
+        //this took forever
         List<List<String>> rows = new ArrayList<>();
         List<String> tmp = new ArrayList<>();
         for(int i = 0; i < wellsAsStrings.size(); i++){//List<Integer[]> w: wells){
@@ -89,6 +89,7 @@ public class PlateFileWriter {
             CSVPrinter printer = new CSVPrinter(writer, plateFileFormat);
         ){
             printer.printComment("Cell source file name: " + sourceFileName);
+            printer.printComment("Each row represents one well on the plate.");
             printer.printComment("Plate size: " + size);
             printer.printComment("Error rate: " + error);
             printer.printComment("Concentrations: " + concenString);