mothra: make text inside <td> bold

sys/src/cmd/mothra/html.h

@@ -201,6 +201,7 @@ enum{
 	Tag_source,
 	Tag_table,	/* rm 3.8.00 */
 	Tag_td,
+	Tag_th,
 	Tag_textarea,
 	Tag_title,
 	Tag_tr,

sys/src/cmd/mothra/html.syntax.c

@@ -78,6 +78,7 @@ Tag tag[]={
 [Tag_source]	"source",	NOEND,
 [Tag_table]	"table",	END,
 [Tag_td]	"td",		END,
+[Tag_th]	"th",		END,
 [Tag_textarea]	"textarea",	END,
 [Tag_title]	"title",	END,
 [Tag_tr]	"tr",		END,

sys/src/cmd/mothra/rdhtml.c

@@ -838,6 +838,8 @@ void plrdhtml(char *name, int fd, Www *dst){
 			g.spacc=0;
 			g.linebrk=1;
 			break;
+		case Tag_th:
+			g.state->font=BOLD;
 		case Tag_td:
 			g.spacc++;
 			break;