Fixed some typos in docs. There was also a missing component block for

sparse_linear_kernel.

docs/docs/ml.xml

@@ -1485,13 +1485,27 @@ Davis E. King. <a href="http://jmlr.csail.mit.edu/papers/volume10/king09a/king09
       
    <!-- ************************************************************************* -->
 
+      <component>
+         <name>sparse_linear_kernel</name>
+         <file>dlib/svm.h</file>
+         <spec_file link="true">dlib/svm/sparse_kernel_abstract.h</spec_file>
+         <description>
+                This object represents a linear kernel for use with
+                kernel learning machines that operate on
+                <a href="dlib/svm/sparse_vector_abstract.h.html#sparse_vectors">sparse vectors</a>.
+         </description>
+                                 
+      </component>
+      
+   <!-- ************************************************************************* -->
+      
       <component>
          <name>sparse_polynomial_kernel</name>
          <file>dlib/svm.h</file>
          <spec_file link="true">dlib/svm/sparse_kernel_abstract.h</spec_file>
          <description>
                 This object represents a polynomial kernel for use with
-                kernel learning machines that operate 
+                kernel learning machines that operate on
                 <a href="dlib/svm/sparse_vector_abstract.h.html#sparse_vectors">sparse vectors</a>.
          </description>
                                  
@@ -1505,7 +1519,7 @@ Davis E. King. <a href="http://jmlr.csail.mit.edu/papers/volume10/king09a/king09
          <spec_file link="true">dlib/svm/sparse_kernel_abstract.h</spec_file>
          <description>
                 This object represents a radial basis function kernel for use with
-                kernel learning machines that operate 
+                kernel learning machines that operate on
                 <a href="dlib/svm/sparse_vector_abstract.h.html#sparse_vectors">sparse vectors</a>.
          </description>