Update README.md

Author: code-blooded

median-cut-algorithm/README.md

@@ -13,6 +13,6 @@ Compression using various algorithms and Comparision between them :)
 <li> Change the path variable to your desired image path <br>
 <li> Input files (.csv) contain different channels of blue, green and red for the input image <br>
 <li> Output files (.csv) contain noise/error values in each color(r,g,b) for the output image <br>
-<li> Lookup table is start - (end-1) range to be replaced with value <br>
+<li> Lookup table is [start,(end-1)] range to be replaced with value <br>
   </ul>
 </p>