fixed readme

README.md

@@ -5,15 +5,25 @@ bad attempts at solving interview questions
 ## The Problem - Verbatim
 
 Write a small program which:
+
 accepts on the command line an odd number N
+
 outputs a sequence of numbers corresponding to the following steps:
+
 the numbers 1 through N^2 are written in a grid
+
 the first number in the sequence is the number in the center of the grid
+
 the subsequent numbers are found by spiraling out clockwise, starting to the right
+
 For example, for N = 3 we have the grid:
+
+```
 1 2 3
 4 5 6
 7 8 9
+```
+
 So we start with 5, head right to 6, then down to 9, left through 8 and 7, up through 4 and 1 and finally right through 2 and 3. This gives the output:
 5, 6, 9, 8, 7, 4, 1, 2, 3, end
 
@@ -26,5 +36,5 @@ IMPORTANT: your solution should not make use of arrays or matrices of numbers. I
 
 ```
 ghc -02 -Wall Spiral.hs -o spiral
-spiral
+./spiral
 ```