added alt text to BG and Twitter img; added src to BG (so BG is not a background, oops)

src/views/index.tpl

@@ -1,10 +1,10 @@
 % rebase('frame.tpl')
     <div class="social">
-        <a href="https://twitter.com/lilchimchooree"><img class="img-social-ribbon" src="static/img/ele/twitter-ribbon.png"></a>
+        <a href="https://twitter.com/lilchimchooree"><img class="img-social-ribbon" src="static/img/ele/twitter-ribbon.png" alt="link to developer's Twitter"></a>
     </div>
 
     <div class="bg">
-        <img class="img-bg-home">
+        <img class="img-bg-home" src="static/img/bg/homeBG.png" alt="background image of nothing">
     </div>
 
     <div class="footer-row"> </div>