Print inkscape command used to generate PNG

this allows the user to edit the SVG and regenerate the PNG

SotMDeckBuilder.py

@@ -122,8 +122,12 @@ def makeFaces(deckJson, outfile):
         cardNum += 1
 
     baseImage.write(outfile + ".svg")
-    subprocess.call(["inkscape", "-z", "-f", outfile + ".svg", "-w",
-                     str(baseX * CARD_WIDTH * 4), "-e", outfile + ".png"])
+    command = ["inkscape", "-z",
+               "-f", outfile + ".svg",
+               "-w", str(baseX * CARD_WIDTH * 5),
+               "-e", outfile + ".png"]
+    print("To regenerate PNG after editing SVG, run:\n    " + " ".join(command))
+    subprocess.run(command)
     return baseX
 
 def makeCardJson(template, nickname, description, cardID):