Week 15 Update

src/views/Week15.vue

@@ -311,7 +311,8 @@ void drawPolygon(int n, float radius, int potX) {
                   <figcaption>You can see thow the figure changes it'ss</figcaption>
             </figure>
           </div>
-          
+          We can see how the figure is created. We have a polygon, which number of edges and size depend on microphone analog value. I change the X coordinate position
+          by moving potentiometer.
         </div>
         
         </div>