diff --git a/docs/theme/nature/layout.html b/docs/theme/nature/layout.html
--- a/docs/theme/nature/layout.html
+++ b/docs/theme/nature/layout.html
@@ -3,13 +3,13 @@
 {% block sidebarlogo %}
 <h3>Support RhodeCode development.</h3>
 <div style="text-align:center">
-	<form action="https://www.paypal.com/cgi-bin/webscr" method="post">
-	<input type="hidden" name="cmd" value="_s-xclick">
-	<input type="hidden" name="hosted_button_id" value="8U2LLRPLBKWDU">
-	<input style="border:0px !important" type="image" src="https://www.paypal.com/en_US/i/btn/btn_donate_SM.gif"
-	border="0" name="submit" alt="PayPal - The safer, easier way to pay online!">
-	<img alt="" border="0" src="https://www.paypal.com/en_US/i/scr/pixel.gif" width="1" height="1">
-	</form>
+    <form action="https://www.paypal.com/cgi-bin/webscr" method="post">
+    <input type="hidden" name="cmd" value="_s-xclick">
+    <input type="hidden" name="hosted_button_id" value="8U2LLRPLBKWDU">
+    <input style="border:0px !important" type="image" src="https://www.paypal.com/en_US/i/btn/btn_donate_SM.gif"
+    border="0" name="submit" alt="PayPal - The safer, easier way to pay online!">
+    <img alt="" border="0" src="https://www.paypal.com/en_US/i/scr/pixel.gif" width="1" height="1">
+    </form>
     <div style="padding:5px">
      <a href="http://flattr.com/thing/167489/RhodeCode" target="_blank">
      <img src="http://api.flattr.com/button/flattr-badge-large.png" alt="Flattr this" title="Flattr this" border="0" /></a>