better copy (2)

app/public/index.html

@@ -35,7 +35,7 @@ <h1>cloud exchange</h1>
 
     <div class="grid_8">
       <p>
-        this website used to display interactive charts of amazon <a href="http://aws.amazon.com/ec2/spot-instances/">spot instance</a> prices.
+        this website used to display interactive charts of amazon <a href="http://aws.amazon.com/ec2/spot-instances/">spot instance</a> prices:
       </p>
 
       <p>
@@ -44,13 +44,13 @@ <h1>cloud exchange</h1>
 
       <p>
         <b>unfortunately, due to time constraints i cannot maintain this service any longer.</b>
-        but if you want to build something similar, feel free to use
+        if you want to build something similar, feel free to use
         <a href="https://github.com/tlossen/cloudexchange.org">my code</a> as a starting point.
       </p>
 
       <p>
         you might also want to check out the
-        <a href="http://www.cs.technion.ac.il/users/wwwb/cgi-bin/tr-info.cgi/2011/CS/CS-2011-09">interesting paper</a>
+        <a href="http://www.cs.technion.ac.il/users/wwwb/cgi-bin/tr-info.cgi/2011/CS/CS-2011-09">paper</a>
         by orna ben-yehuda et. al., which tries to reverse-engineer the pricing algorithm used by amazon, and concludes
         that prices <i>"are usually not market-driven as sometimes previously assumed. Rather, they are typically generated
         <b>at random</b> from within a tight price interval"</i>.