Index: doc-rnd/djopt/Makefile
===================================================================
--- doc-rnd/djopt/Makefile	(revision 1058)
+++ doc-rnd/djopt/Makefile	(revision 1059)
@@ -31,7 +31,7 @@
 	rm $*.out.pcb.tmp
 
 .pcb.tbl:
-	echo '<tr><td>$*<td>'>>$(HTML)
+	echo '<tr><th>$*<td>'>>$(HTML)
 	cat $*.txt >>$(HTML)
 	echo '  <td><a href="$*.pcb"><img src="$*.png"></a>  <td><a href="$*.out.pcb"><img src="$*.out.png"></a>'>>$(HTML)
 
Index: doc-rnd/djopt/Pre.html
===================================================================
--- doc-rnd/djopt/Pre.html	(revision 1058)
+++ doc-rnd/djopt/Pre.html	(revision 1059)
@@ -11,4 +11,4 @@
 Click on the images to download the example .pcb design.
 
 <table border=1 cellspacing=0>
-<tr><td>argument name<td> description <td> example in <td> example out after 1st iteration
+<tr><th>argument name<th> description <th> example in <th> example out after 1st iteration
Index: doc-rnd/djopt/index.html
===================================================================
--- doc-rnd/djopt/index.html	(revision 1058)
+++ doc-rnd/djopt/index.html	(revision 1059)
@@ -11,31 +11,31 @@
 Click on the images to download the example .pcb design.
 
 <table border=1 cellspacing=0>
-<tr><td>argument name<td> description <td> example in <td> example out after 1st iteration
-<tr><td>debumpify<td>
+<tr><th>argument name<th> description <th> example in <th> example out after 1st iteration
+<tr><th>debumpify<td>
 Looks for U-shaped traces (with 90 degree corners) that can be shortened
 or eliminated.
   <td><a href="debumpify.pcb"><img src="debumpify.png"></a>  <td><a href="debumpify.out.pcb"><img src="debumpify.out.png"></a>
-<tr><td>miter<td>
+<tr><th>miter<td>
 Replaces 90 degree corners with a pair of 45 degree corners, to reduce
 RF losses and trace length.
   <td><a href="miter.pcb"><img src="miter.png"></a>  <td><a href="miter.out.pcb"><img src="miter.out.png"></a>
-<tr><td>orthopull<td>
+<tr><th>orthopull<td>
 Looks for chains of traces all going in one direction, with more
 traces orthogonal on one side than on the other.  Moves the chain in
 that direction, causing a net reduction in trace length, possibly
 eliminating traces and/or corners.
   <td><a href="orthopull.pcb"><img src="orthopull.png"></a>  <td><a href="orthopull.out.pcb"><img src="orthopull.out.png"></a>
-<tr><td>unjaggy<td>
+<tr><th>unjaggy<td>
 Looks for corners which could be flipped to eliminate one or more
 corners (i.e. jaggy lines become simpler).
   <td><a href="unjaggy.pcb"><img src="unjaggy.png"></a>  <td><a href="unjaggy.out.pcb"><img src="unjaggy.out.png"></a>
-<tr><td>vianudge<td>
+<tr><th>vianudge<td>
 Looks for vias where all traces leave in the same direction.  Tries to
 move via in that direction to eliminate one of the traces (and thus a
 corner).
   <td><a href="vianudge.pcb"><img src="vianudge.png"></a>  <td><a href="vianudge.out.pcb"><img src="vianudge.out.png"></a>
-<tr><td>viatrim<td>
+<tr><th>viatrim<td>
 Looks for traces that go from via to via, where moving that trace to a
 different layer eliminates one or both vias.
   <td><a href="viatrim.pcb"><img src="viatrim.png"></a>  <td><a href="viatrim.out.pcb"><img src="viatrim.out.png"></a>