doc elements can have dim elements but this was not the intention

applications/NXstxm.nxdl.xml

@@ -97,7 +97,7 @@
                     of 3 dimensions, with the first being the set of scan points and the latter 
                     two being the x- and y- extent of the detector.
                         NOTE: For each dimension > 1 there must exist a dim section such as:
-                            <dim index="(dimension index value)" value="(size of dimension)" /></doc>
+                            &lt;dim index="(dimension index value)" value="(size of dimension)" /&gt;</doc>
                     <dim index="1" value="nP" />
                   </dimensions>
                 </field>