Add missing alt tags

chapter02/chapter02-project01.html

@@ -37,9 +37,9 @@
    </section>
    <section>
        <h3 id="related">Related Photos</h3>
-       <a href="images/related-large1.jpg"><img src="images/related-square1.jpg" alt="" /></a>
-       <a href="images/related-large2.jpg"><img src="images/related-square2.jpg" alt="" /></a>
-       <a href="images/related-large3.jpg"><img src="images/related-square3.jpg" alt="" /></a>
+       <a href="images/related-large1.jpg"><img src="images/related-square1.jpg" alt="A random bush." /></a>
+       <a href="images/related-large2.jpg"><img src="images/related-square2.jpg" alt="Some trees I guess." /></a>
+       <a href="images/related-large3.jpg"><img src="images/related-square3.jpg" alt="Woah, a building." /></a>
    </section>
    <section>
 	   <h3 id="reviews">Reviews</h3>