add note for book pre-order

Author: tony

doc/_static/img/books/amazon-logo.png

@@ -0,0 +1,11 @@
+<h3>Book Pre-order</h3>
+
+<p><img src="https://s3.amazonaws.com/titlepages.leanpub.com/the-tao-of-tmux/large"></p>
+
+<p>Get your copy of the <em>The Tao of tmux</em> on <a class="reference external" href="https://leanpub.com/the-tao-of-tmux">Leanpub</a>, <a class="reference external" href="https://www.amazon.com/gp/product/B01MG342KU/ref=as_li_tl?ie=UTF8&amp;camp=1789&amp;creative=9325&amp;creativeASIN=B01MG342KU&amp;linkCode=as2&amp;tag=gitpull-20&amp;linkId=e6d3f08ad92bfea1cf62d735b6a90bdf">Kindle</a> (Amazon),
+and <a class="reference external" href="https://geo.itunes.apple.com/us/book/the-tao-of-tmux/id1168912720?mt=11&amp;at=1001lrwP">iBooks</a> (iTunes store). The final version will be delivered to you January 2017.</p>
+<p><a class="reference external" href="https://leanpub.com/the-tao-of-tmux/c/oBsI4y3o4quu">Pre-order on Leanpub</a> before Dec 23rd for the special discount
+price of $7.99.</p>
+<p>Read and browse the book for <a class="reference external" href="https://leanpub.com/the-tao-of-tmux/read">free on the web</a>.</p>
+<a class="reference external image-reference" href="https://www.amazon.com/gp/product/B01MG342KU/ref=as_li_tl?ie=UTF8&amp;camp=1789&amp;creative=9325&amp;creativeASIN=B01MG342KU&amp;linkCode=as2&amp;tag=gitpull-20&amp;linkId=e6d3f08ad92bfea1cf62d735b6a90bdf"><img alt="Amazon Kindle" src="/_static/img/books/amazon-logo.png" width="45%"></a>
+<a class="reference external image-reference" href="https://geo.itunes.apple.com/us/book/the-tao-of-tmux/id1168912720?mt=11&amp;at=1001lrwP"><img alt="iTunes" src="/_static/img/books/ibooks-logo.png" width="45%"></a>

doc/_static/img/books/ibooks-logo.png

@@ -57,6 +57,7 @@
         'navigation.html',
         'relations.html',
         'more.html',
+        'book.html',
         'searchbox.html',
     ]
 }