diff --git a/www/compare.html b/www/compare.html
index 63055e8..f58f295 100644
--- a/www/compare.html
+++ b/www/compare.html
@@ -8,13 +8,13 @@
                           http://www.w3.org/MarkUp/SCHEMA/xhtml11.xsd">
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-  <meta name="google-site-verification" content="MxsMq6bdLOx0KSuz1MY6yG9ZTIJ7_7DVRfl5NCAT5Yg"/>
+  <meta name="google-site-verification" content="_bMOCDpkx9ZAzBwb2kF3PRHbfUUdFj2uO8Jd1AXArz4"/>
   <title>ImageMagick: Command-line Tools: Compare</title>
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@@ -24,42 +24,55 @@
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 <div class="main">
@@ -241,13 +227,13 @@
 <p class="navigation-index">[<a href="compare.html#usage">Example Usage</a> &bull; <a href="compare.html#options">Option Summary</a>]</p>
 
 <div class="doc-section">
-<p>Use the <kbd>compare</kbd> program to mathematically and visually annotate the difference between an image and its reconstruction.  See <a href="command-line-processing.html">Command Line Processing</a> for advice on how to structure your <kbd>compare</kbd> command or see below for example usages of the command.</p>
+<p>Use the <code>compare</code> program to mathematically and visually annotate the difference between an image and its reconstruction.  See <a href="command-line-processing.html">Command Line Processing</a> for advice on how to structure your <code>compare</code> command or see below for example usages of the command.</p>
 </div>
 
 <h2><a id="usage"></a>Example Usage</h2>
 <div class="doc-section">
 
-<p>We list a few examples of the <kbd>compare</kbd> command here to illustrate its usefulness and ease of use. To get started, lets compare an image to one thats been sharpened:</p>
+<p>We list a few examples of the <code>compare</code> command here to illustrate its usefulness and ease of use. To get started, lets compare an image to one thats been sharpened:</p>
 
 <p class='crt'><span class="crtprompt"> $ </span><span class='crtin'>convert rose.jpg -sharpen 0x1 reconstruct.jpg</span><span class='crtout'></span><span class="crtprompt"> $ </span><span class='crtin'>compare rose.jpg reconstruct.jpg difference.png</span><span class='crtout'></span><span class="crtprompt"> $ </span><span class='crtin'>compare -compose src rose.jpg reconstruct.jpg difference.png</span></p>
 <div class="image">
@@ -277,13 +263,13 @@
 <p>If the reconstructed image is a subimage of the image, the compare program returns the best match offset.  In addition, it returns a similarity image such that an exact match location is completely white and if none of the pixels match, black, otherwise some gray level in-between:</p>
 
 <p class='crt'><span class="crtprompt"> $ </span><span class='crtin'>compare -metric RMSE -subimage-search logo.png wizard.jpg similarity.gif</span><span class='crtout'>85.05 (0.00129778) @ 353,157</span></p>
-<p>You can find additional examples of using <kbd>compare</kbd> in <a href="http://www-106.ibm.com/developerworks/library/l-graf/?ca=dnt-428">Graphics from the Command Line</a>.  Further discussion is available in <a href="http://www-106.ibm.com/developerworks/library/l-graf2/?ca=dgr-lnxw15GraphicsLine">More Graphics from the Command Line</a> and <a href="http://www.imagemagick.org/Usage/">Examples of ImageMagick Usage</a>.</p>
+<p>You can find additional examples of using <code>compare</code> in <a href="http://www-106.ibm.com/developerworks/library/l-graf/?ca=dnt-428">Graphics from the Command Line</a>.  Further discussion is available in <a href="http://www-106.ibm.com/developerworks/library/l-graf2/?ca=dgr-lnxw15GraphicsLine">More Graphics from the Command Line</a> and <a href="http://www.imagemagick.org/Usage/">Examples of ImageMagick Usage</a>.</p>
 </div>
 
 <h2><a id="options"></a>Option Summary</h2>
 <div class="doc-section">
 
-<p>The <kbd>compare</kbd> command recognizes these options.  Click on an option to get more details about how that option works.</p>
+<p>The <code>compare</code> command recognizes these options.  Click on an option to get more details about how that option works.</p>
 
 <table class="doc">
   <tbody>
@@ -344,7 +330,7 @@
   </tr>
 
   <tr>
-    <td valign="top"><a href="command-line-options.html#disimilarity-threshold">-disimilarity-threshold <em class="option">value</em></a></td>
+    <td valign="top"><a href="command-line-options.html#dissimilarity-threshold">-dissimilarity-threshold <em class="option">value</em></a></td>
     <td valign="top">maximum distortion for (sub)image match (default 0.2)</td>
   </tr>
 
@@ -449,6 +435,11 @@
   </tr>
 
   <tr>
+    <td valign="top"><a href="command-line-options.html#similarity-threshold">-similarity-threshold <em class="option">value</em></a></td>
+    <td valign="top">minimum distortion for (sub)image match (default 0.0)</td>
+  </tr>
+
+  <tr>
     <td valign="top"><a href="command-line-options.html#size">-size <em class="option">geometry</em></a></td>
     <td valign="top">width and height of image</td>
   </tr>
@@ -496,9 +487,11 @@
 
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