[docs] winedev: Use double quotes around SGML attribute values

[Frédéric Delanoy]

---
 en/winedev-debugger.sgml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/en/winedev-debugger.sgml b/en/winedev-debugger.sgml
index 6bec08b..c727985 100644
--- a/en/winedev-debugger.sgml
+++ b/en/winedev-debugger.sgml
@@ -2608,7 +2608,7 @@ $ gdb wine
       <sect2>
         <title>Main differences between winedbg and regular Unix debuggers</title>
 	<table><title>Debuggers comparison</title>
-	  <tgroup cols=2 align="left">
+	  <tgroup cols="2" align="left">
 	    <tbody>
 	      <row>
 		<entry>WineDbg</entry><entry>gdb</entry>
-- 
1.8.3.2