Update README.md

Author: camelCaseSensitive

README.md

@@ -3,7 +3,7 @@ Browser tool for generating color by numbers pixel math worksheets for addition
 
 <p align="left">
   <a href="https://camelcasesensitive.github.io/Pixel-Math-Worksheet-Generator-Add-Subtract/">
-    <img src="./pikachu workflow.png" alt="Pikachu Pixel Math" title="Pikachu" width="600">
+    <img src="./pikachu workflow.png" alt="Pikachu Pixel Math" title="Pikachu">
   </a>
 </p>
 > Click the image above to try it live on GitHub Pages.