Add a brief section to the Subversion Primer outlining the layout

of the doc SVN repository.

en_US.ISO8859-1/articles/committers-guide/article.sgml

@@ -1377,6 +1377,45 @@ Host projcvs.FreeBSD.org
 	  </listitem>
 	</itemizedlist>
       </sect3>
+
+      <sect3>
+	<title>&os; Documentation Project Branches and
+	  Layout</title>
+
+	<para>In <literal>svn+ssh://svn.freebsd.org/doc</literal>,
+	  <emphasis>doc</emphasis> refers repository root of the
+	  source tree.</para>
+
+	<para>In general, most &os; Documentation Project work will be
+	  done within the <filename>head/</filename> branch of the
+	  source tree.</para>
+
+	<para>&os; documentation is written and/or translated to
+	  various languages, each of which within a separate
+	  directory within the <filename>head/</filename>
+	  branch.</para>
+
+	<para>Each translation set contains several subdirectories for
+	  the various parts of the &os; Documentation Project.  A few
+	  noteworthy directories are:</para>
+
+	<itemizedlist>
+	  <listitem>
+	    <para><emphasis>/articles/</emphasis> contains the source
+	      code for articles written by various &os;
+	      contributors.</para>
+	  </listitem>
+	  <listitem>
+	    <para><emphasis>/books/</emphasis> contains the source
+	      code for the different books, such as the
+	      &os;&nbsp;Handbook.</para>
+	  </listitem>
+	  <listitem>
+	    <para><emphasis>/htdocs/</emphasis> contains the source
+	      code for the &os;&nbsp;website.</para>
+	  </listitem>
+	</itemizedlist>
+      </sect3>
     </sect2>
 
     <sect2 id="svn-daily-use">