masonry column shift layout mode added

_posts/custom-layout-modes/2012-01-03-masonry-column-shift.html

@@ -23,7 +23,7 @@ category: custom-layout-modes
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-  <p>Custom layout mode <code>masonryColumnShift</code>. Enabled columns of a masonry layout to be shifted and not affect other columns. After the size of an item element has changed, you can trigger a special <code>columnShiftOfItem</code> method that will push the column down.</p>
+  <p>Custom layout mode <code>masonryColumnShift</code>. Enabled columns of a Masonry layout to be shifted and not affect other columns. After the size of an item element has changed, you can trigger a special <code>columnShiftOfItem</code> method that will push the column down. This layout only works with item elements that have the same width</p>
 
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