Fixed grammar

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extra : convert_revision : svn%3Afdd8eb12-d10e-0410-9acb-85c331704f74/trunk%403704

docs/docs/books.xml

@@ -173,7 +173,7 @@
                <ul> While <i>Linear Algebra Done Right</i> is fairly abstract, this book by
                   Trefethen and Bau will 
                   explain some of the actual algorithms that are often used.
-                  This is a great second book if you find that you want to know know more about 
+                  This is a great second book if you find that you want to know more about 
                   the SVD, LU decomposition, or various other algorithms involving linear algebra.   
                </ul><br/>
             </li>