dev-manual: Some minor tweaks to ch 4, development manual:

* is it technically correct to say there are now 5 BSPs? as in, does
  genericx86-64 count as a new BSP distinct from genericx86? [aside: are
  there any plans for a MIPS64 BSP?] - rpjday

  MIPS64 is under development. - scottrif

* if scott is up for it, a couple more variables for the variable
  glossary might be BASE_WORKDIR and TARGET_VENDOR, which i would have
  added to that variable list but they don't appear in the glossary
  - rpjday

  Noted. - scottrif

(From yocto-docs rev: 45876209fd94a6800176381518f008890da646ee)

Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

documentation/dev-manual/dev-manual-model.xml

@@ -155,10 +155,11 @@
                     For more information on BSP layers, see the
                     "<ulink url='&YOCTO_DOCS_BSP_URL;#bsp-layers'>BSP Layers</ulink>" section in the
                     Yocto Project Board Support Package (BSP) Developer's Guide.</para>
-                    <note>Four BSPs exist that are part of the
+                    <note>Five BSPs exist that are part of the
-                    Yocto Project release: <filename>genericx86</filename>, <filename>beagleboard</filename>,
+                    Yocto Project release: <filename>genericx86</filename>, <filename>genericx86-64</filename>,
+                    <filename>beagleboard</filename>,
                     <filename>mpc8315e</filename>, and <filename>routerstationpro</filename>.
-                    The recipes and configurations for these four BSPs are located and dispersed
+                    The recipes and configurations for these five BSPs are located and dispersed
                     within the <link linkend='source-directory'>Source Directory</link>.
                     On the other hand, BSP layers for Chief River, Crown Bay,
                     Crystal Forest, Emenlow, Fish River Island 2, Jasper Forest, N450, NUC DC3217IYE,
@@ -218,10 +219,10 @@
         <para>
             You can view a video presentation on "Building Custom Embedded Images with Yocto"
             at <ulink url='http://free-electrons.com/blog/elc-2011-videos'>Free Electrons</ulink>.
-            You can also find supplemental information in
+            You can also find supplemental information in the
             <ulink url='&YOCTO_DOCS_BSP_URL;'>
-            The Board Support Package (BSP) Development Guide</ulink>.
+            Yocto Project Board Support Package (BSP) Developer's Guide</ulink>.
-            Finally, there is wiki page write up of the example also located
+            Finally, there is a wiki page write up of the example also located
             <ulink url='&YOCTO_WIKI_URL;/wiki/Transcript:_creating_one_generic_Atom_BSP_from_another'>
             here</ulink> that you might find helpful.
        </para>
@@ -1643,7 +1644,7 @@
             <filename>meta/conf/bitbake.conf</filename> configuration file in the
             <link linkend='source-directory'>Source Directory</link>:
             <literallayout class='monospaced'>
-     S = ${WORKDIR}/${BP}
+     S = "${WORKDIR}/${BP}"
             </literallayout>
             You should be aware that many recipes override the <filename>S</filename> variable.
             For example, recipes that fetch their source from Git usually set
@@ -1653,7 +1654,7 @@
                 <ulink url='&YOCTO_DOCS_REF_URL;#var-BP'><filename>BP</filename></ulink>
                 represents the base recipe name, which consists of the name and version:
                 <literallayout class='monospaced'>
-     BP = ${BPN}-${PV}
+     BP = "${BPN}-${PV}"
                 </literallayout>
             </note>
         </para>
@@ -1702,6 +1703,7 @@
             <ulink url='&YOCTO_DOCS_REF_URL;#var-TMPDIR'><filename>TMPDIR</filename></ulink>,
             <ulink url='&YOCTO_DOCS_REF_URL;#var-TOPDIR'><filename>TOPDIR</filename></ulink>,
             <ulink url='&YOCTO_DOCS_REF_URL;#var-PACKAGE_ARCH'><filename>PACKAGE_ARCH</filename></ulink>,
+            <ulink url='&YOCTO_DOCS_REF_URL;#var-MULTIMACH_TARGET_SYS'><filename>MULTIMACH_TARGET_SYS</filename></ulink>,
             <ulink url='&YOCTO_DOCS_REF_URL;#var-TARGET_OS'><filename>TARGET_OS</filename></ulink>,
             <ulink url='&YOCTO_DOCS_REF_URL;#var-PN'><filename>PN</filename></ulink>,
             <ulink url='&YOCTO_DOCS_REF_URL;#var-PV'><filename>PV</filename></ulink>,