sdk-manual: Edits to "Running the SDK Environment Setup Script"

Minor edits to this section.

(From yocto-docs rev: 68a6e4cac6cecd14e87d4f05f558d79165761d4d)

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

documentation/sdk-manual/sdk-using.xml

@@ -171,12 +171,11 @@
 
         <para>
             Once you have the SDK installed, you must run the SDK environment
-            setup script before you can actually use it.
+            setup script before you can actually use the SDK.
             This setup script resides in the directory you chose when you
-            installed the SDK.
-            For information on where this setup script can reside, see the
-            "<link linkend='sdk-appendix-obtain'>Obtaining the SDK</link>"
-            Appendix.
+            installed the SDK, which is either the default
+            <filename>/opt/poky/&DISTRO;</filename> directory or the directory
+            you chose during installation.
         </para>
 
         <para>
@@ -185,9 +184,11 @@
             Environment setup scripts begin with the string
             "<filename>environment-setup</filename>" and include as part of
             their name the tuned target architecture.
-            For example, the command to source a setup script for an IA-based
-            target machine using i586 tuning and located in the default SDK
-            installation directory is as follows:
+            As an example, the following commands set the working directory
+            to where the SDK was installed and then source the environment
+            setup script.
+            In this example, the setup script is for an IA-based
+            target machine using i586 tuning:
             <literallayout class='monospaced'>
      $ source /opt/poky/&DISTRO;/environment-setup-i586-poky-linux
             </literallayout>