bsp-guide: Minor editing change.

(From yocto-docs rev: 702b3a72cd95c01770e4e7a8f0bd1e2302a1beba)

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

documentation/bsp-guide/bsp.xml

@@ -1222,7 +1222,7 @@
                     Of the available architectures, <filename>qemu</filename> is the only architecture
                     that causes the script to prompt you further for an actual architecture.
                     In every other way, this architecture is representative of how creating a BSP for
-                    a 'real' machine would work.
+                    an actual machine would work.
                     The reason the example uses this architecture is because it is an emulated architecture
                     and can easily be followed without requiring actual hardware.
                 </para>