diff --git a/QRCodex.py b/QRCodex.py
index 97c36a3..ba359c2 100644
--- a/QRCodex.py
+++ b/QRCodex.py
@@ -1,5 +1,4 @@
 import io
-import math
 # Importing Image and ImageFont, ImageDraw module from PIL package  
 from PIL import Image, ImageFont, ImageDraw  
 #import QRcode generator lib
@@ -21,9 +20,9 @@ qr = qrcode.QRCode(
 qr.add_data(code)
 
 #saving the normal QRCode image
-img = qr.make_image()
-type(img)  # qrcode.image.pil.PilImage
-img.save("qrcode.png")
+qrcodeimage = qr.make_image()
+type(qrcodeimage)  # qrcode.image.pil.PilImage
+qrcodeimage.save("qrcode.png")
 
 #storing the qrCode in a list[list[bool]]
 boolmatrix = qr.get_matrix() 
@@ -32,11 +31,11 @@ boolmatrix = qr.get_matrix()
 codeximage = Image.new("RGB", (textsize*len(boolmatrix), textsize*len(boolmatrix)), "white")
 codexdraw = ImageDraw.Draw(codeximage)  
 
-# specified font size 
+# specify fonts 
 fontnormal = ImageFont.truetype(r'./FiraMono_Regular.otf', textsize) 
 fontbold = ImageFont.truetype(r'./FiraMono_Bold.otf', textsize)  
 
-# drawing text 
+# drawing text, one character per cell
 index = 0
 for i, inner_list in enumerate(boolmatrix):
     for j, element in enumerate(inner_list):