Update README.md

Author: camelCaseSensitive

README.md

@@ -1,7 +1,11 @@
 # Pixel-Math-Worksheet-Generator-Add-Subtract
 Browser tool for generating color by numbers pixel math worksheets for addition and subtraction practice. 
 
-[./pikachu workflow.png](https://camelcasesensitive.github.io/Pixel-Math-Worksheet-Generator-Add-Subtract/)
+<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">
+  </a>
+</p>
 > Click the image above to try it live on GitHub Pages.
 
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