Add id attributes to sect1 tags in articles that has generated stale

xXXX.html files on www.FreeBSD.org to avoid generating more of them.

en_US.ISO8859-1/articles/laptop/article.sgml

@@ -50,7 +50,7 @@
       information about using Laptops on &os; at
       <ulink url="http://tuxmobil.org/mobile_bsd.html"></ulink>.</para>
 
-  <sect1>    
+  <sect1 id="xorg">
     <title>&xorg;</title>
       
     <para>Recent versions of <application>&xorg;</application> work with most display adapters
@@ -90,7 +90,7 @@
       section.</para>
   </sect1> 
 
-  <sect1> 
+  <sect1 id="modems">
     <title>Modems</title>
     <para> 
       Laptops usually come with internal (on-board) modems.
@@ -107,7 +107,7 @@
 
   </sect1> 
 
-  <sect1> 
+  <sect1 id="pcmcia">
     <title>PCMCIA (PC Card) devices</title>
 
     <para> Most laptops come with PCMCIA (also called PC Card)
@@ -155,7 +155,7 @@
  
   </sect1> 
 
-  <sect1> 
+  <sect1 id="power-management">
 
     <title>Power management</title>