Fixed sample testcase solution

Author: 23silicon

challenges/medium/17_dot_product/challenge.html

@@ -21,9 +21,9 @@ <h2>Example 1:</h2>
 <h2>Example 2:</h2>
 <pre>Input:  A = [0.5, 1.5, 2.5]
                B = [2.0, 3.0, 4.0]
-       Output: result = 16.0  (0.5*2.0 + 1.5*3.0 + 2.5*4.0)</pre>
+       Output: result = 15.5  (0.5*2.0 + 1.5*3.0 + 2.5*4.0)</pre>
 <h2>Constraints</h2>
 <ul>
     <li><code>A</code> and <code>B</code> have identical lengths</li>
     <li>1 ≤ <code>N</code> ≤ 100,000,000</li>
-</ul> 
+</ul>