Merge pull request #432 from M4FFS/fixtables

 Fix md parser excluding table headers

Author: cassierecher

claat/parser/md/parse.go

@@ -573,8 +573,14 @@ func table(ds *docState) types.Node {
 
 func tableRow(ds *docState) []*types.GridCell {
 	var row []*types.GridCell
-	for td := findAtom(ds.cur, atom.Td); td != nil; td = td.NextSibling {
-		if td.DataAtom != atom.Td {
+	firstChild := findAtom(ds.cur, atom.Td)
+	// If there is no Td child found, could be table header so look for Th
+	if firstChild == nil {
+		firstChild = findAtom(ds.cur, atom.Th)
+	}
+
+	for td := firstChild; td != nil; td = td.NextSibling {
+		if td.DataAtom != atom.Td && td.DataAtom != atom.Th {
 			continue
 		}
 		ds.push(td)