dev-manual: Pulled cloning sections up into a parent section.

(From yocto-docs rev: 68ef556831f687e25e3f4df068db4ea86bffb3b3)

Signed-off-by: Scott Rifenbark <srifenbark@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

documentation/dev-manual/dev-manual-start.xml

@@ -829,35 +829,39 @@
             </orderedlist>
         </para>
     </section>
+</section>
 
-    <section id='cloning-the-poky-repository'>
-        <title>Cloning the <filename>poky</filename> Repository</title>
+<section id='cloning-and-checking-out-branchs'>
+    <title>Cloning and Checking Out Branches</title>
 
-        <para>
-            To use the Yocto Project, you need a release of the Yocto Project
-            locally installed on your development system.
-            The locally installed set of files is referred to as the
-            <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
-            in the Yocto Project documentation.
-        </para>
+    <para>
+        To use the Yocto Project, you need a release of the Yocto Project
+        locally installed on your development system.
+        The locally installed set of files is referred to as the
+        <ulink url='&YOCTO_DOCS_REF_URL;#source-directory'>Source Directory</ulink>
+        in the Yocto Project documentation.
+    </para>
 
-        <para>
-            You create your Source Directory by using
-            <ulink url='&YOCTO_DOCS_OM_URL;#git'>Git</ulink> to clone a local
-            copy of the upstream <filename>poky</filename> repository.
-            <note><title>Tip</title>
-                The preferred method of getting the Yocto Project Source
-                Directory set up is to clone the repository.
-            </note>
-            Working from a copy of the upstream repository allows you
-            to contribute back into the Yocto Project or simply work with
-            the latest software on a development branch.
-            Because Git maintains and creates an upstream repository with
-            a complete history of changes and you are working with a local
-            clone of that repository, you have access to all the Yocto
-            Project development branches and tag names used in the upstream
-            repository.
-        </para>
+    <para>
+        You create your Source Directory by using
+        <ulink url='&YOCTO_DOCS_OM_URL;#git'>Git</ulink> to clone a local
+        copy of the upstream <filename>poky</filename> repository.
+        <note><title>Tip</title>
+            The preferred method of getting the Yocto Project Source
+            Directory set up is to clone the repository.
+        </note>
+        Working from a copy of the upstream repository allows you
+        to contribute back into the Yocto Project or simply work with
+        the latest software on a development branch.
+        Because Git maintains and creates an upstream repository with
+        a complete history of changes and you are working with a local
+        clone of that repository, you have access to all the Yocto
+        Project development branches and tag names used in the upstream
+        repository.
+    </para>
+
+    <section id='cloning-the-poky-repository'>
+        <title>Cloning the <filename>poky</filename> Repository</title>
 
         <para>
             Follow these steps to create a local version of the