Update README

PostfixCalc/README.md

@@ -5,6 +5,7 @@
 
 ## Program Map
 > Use this to follow the explanation below
+
 ![](/PostfixCalc/postfixCalc_Eval.png)
 
 ## Explanation
@@ -44,4 +45,4 @@
 5. Roll stack to place the result of the previous operation onto the top of the operand stack (right under the 0), and continue back to <span style="color:cyan">blue 2</span>
 
 ## Limitations
-Does not handle multi-digit numbers, negative numbers, or exponents in input.
+Does not handle multi-digit numbers, negative numbers, or exponents in input.