Merge pull request #19 from csware/html-fixes

missing alt-attribute

views/documentation.erb

@@ -122,7 +122,7 @@
     <tr><td>
       
         <div class="center">
-          <a href="http://www.amazon.com/gp/product/1934356727?ie=UTF8&amp;tag=prgi-20&amp;linkCode=as2&amp;camp=1789&amp;creative=390957&amp;creativeASIN=1934356727"><img class="book" width="120" src="/images/books/pg_git.jpg" /></a><img src="http://www.assoc-amazon.com/e/ir?t=prgi-20&amp;l=as2&amp;o=1&amp;a=1934356727" width="1" height="1" alt="" style="border:none !important; margin:0px !important;" />
+          <a href="http://www.amazon.com/gp/product/1934356727?ie=UTF8&amp;tag=prgi-20&amp;linkCode=as2&amp;camp=1789&amp;creative=390957&amp;creativeASIN=1934356727"><img class="book" width="120" src="/images/books/pg_git.jpg" alt="" /></a><img src="http://www.assoc-amazon.com/e/ir?t=prgi-20&amp;l=as2&amp;o=1&amp;a=1934356727" width="1" height="1" alt="" style="border:none !important; margin:0px !important;" />
           <br/>
         <a href="http://www.pragprog.com/titles/pg_git/pragmatic-guide-to-git">Pragmatic Guide to Git</a><br/>
         by Travis Swicegood