add addField button

sketch.js

@@ -173,10 +173,17 @@ new p5(function (p5){
   }
 
   function makeButtons(){
+    // press to run model
     const submitButton = p5.createButton("SUBMIT")
     submitButton.size(170)
     submitButton.class('submit')
     submitButton.mousePressed(displayResults)
+
+    // press to add more blanks to fill in
+    const addButton = p5.createButton("more blanks")
+    addButton.size(170)
+    // addButton.position(220,500)
+    addButton.mousePressed(addField)
     
     // also make results placeholder
     const outHeader = p5.createElement('h3',"Results")