Punctuation fixes, add filename tags and a typo corection.

Approved by:	keramida

en_US.ISO8859-1/books/handbook/ports/chapter.sgml

@@ -79,7 +79,7 @@
 
     <para>Should you want to, you can continue to install software the
       <quote>traditional</quote> way with FreeBSD.  However, FreeBSD
-      provides two technologies which can save you a lot of effort;
+      provides two technologies which can save you a lot of effort:
       packages and ports.  At the time of writing, over &os.numports;
       third party applications have been made available in this
       way.</para>
@@ -214,7 +214,7 @@
 
     <para>FreeBSD's list of available applications is growing all the
       time.  Fortunately, there are a number of ways to
-      find what you want.</para>
+      find what you want:</para>
 
     <itemizedlist>
       <listitem>
@@ -329,7 +329,7 @@ local: lsof-4.56.4.tgz remote: lsof-4.56.4.tgz
 	removed.  &man.pkg.add.1; will automatically fetch the latest
 	version of the application.</para>
 
-      <para>Package files are distributed in .tgz format.  You can
+      <para>Package files are distributed in <filename>.tgz</filename> format.  You can
           find them at <ulink
           url="ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/packages/">
           ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/packages/</ulink>,
@@ -416,7 +416,7 @@ docbook                     =
   	    </row>
  
         <row><entry>&lt;</entry>
-	<entry>The installed version is older then the one available
+	<entry>The installed version is older than the one available
 	in the ports tree.</entry>
 	</row>
 
@@ -930,7 +930,7 @@ Receiving lsof_4.57D.freebsd.tar.gz (439860 bytes): 100%
     <para>The exact steps you need to take to configure each application will
       obviously be different.  However, if you have just installed a new
       application and are wondering <quote>What now?</quote> these tips might
-      help.</para>
+      help:</para>
 
     <itemizedlist>
       <listitem>