Update README.md

Author: IsharMn

letter_image_generator/README.md

@@ -24,4 +24,7 @@ Or, use the ```letter_image_generator(letter, width, height)``` function to gene
 Here are some pictures of the image results.
 
 ![A.png](images/A.png) 
-![R.png](images/R.png)
+![R.png](images/R.png)
+
+## Author
+@IsharMhzn