diff --git a/www/command-line-options.html b/www/command-line-options.html
index 7895a1b..1b9147d 100644
--- a/www/command-line-options.html
+++ b/www/command-line-options.html
@@ -188,7 +188,7 @@
<a title="Sponsor: Druckerei" href="http://print24.com/de/">Druckerei</a><!-- 201110010720 -->
</div>
<div class="sponsor">
- <a title="Sponsor: Notebook Reparatur Berlin" href="http://www.notebook-reparaturen-berlin.de">Notebook Reparatur Berlin</a><!-- 2011060100025 gabi.schulze-->
+ <a title="Sponsor: Custom T-Shirts" href="http://www.ooshirts.com">Custom T-Shirts</a><!-- 2011050100030 ooshirts.com-->
</div>
</div>
</div>
@@ -1092,7 +1092,7 @@
<table style='background-color:#FFFFE0; margin-left:40px; margin-right:40px; width:88%'><tr><td style='width:75%'>Clip along a named path from the 8BImageMagick profile.</td><td style='text-align:right;'></td></tr></table>
-<p>This is almost identicate to <a href="#clip">-clip</a>. </p>
+<p>This is almost identical to <a href="#clip">-clip</a>. </p>
<div style="margin: auto;">
@@ -1762,6 +1762,9 @@
list. Although PNG chunk-names are case-dependent, you can use
all lowercase names if you prefer.</p>
+ <p>The "include-chunk" and "exclude-chunk" lists only affect the behavior
+ of the PNG encoder and have no effect on the PNG decoder.</p>
+
<p>As a special case, if the <kbd>sRGB</kbd> chunk is excluded and
the <kbd>gAMA</kbd> chunk is included, the <kbd>gAMA</kbd> chunk will
only be written if gamma is not 1/2.2, since most decoders assume
@@ -1795,7 +1798,15 @@
and to exclude all PNG chunks that are unknown to ImageMagick,
regardless of their PNG "copy-safe" status as described in the
PNG specification.</p>
- </dd>
+
+ <p>Any chunk names that are not known to ImageMagick are ignored
+ if they appear in either the "include-chunk" or "exclude-chunk" list.
+ The ancillary chunks currently known to ImageMagick are
+ <kbd>bKGD</kbd>, <kbd>cHRM</kbd>, <kbd>gAMA</kbd>, <kbd>iCCP</kbd>,
+ <kbd>oFFs</kbd>, <kbd>pHYs</kbd>, <kbd>sRGB</kbd>, <kbd>tEXt</kbd>,
+ <kbd>tRNS</kbd>, <kbd>vpAg</kbd>, and <kbd>zTXt</kbd>.</p>
+
+y</dd>
<dt>ps:imagemask</dt>
<dd>If the ps:imagemask flag is defined, the PS3 and EPS3 coders will create