Fixes [YOCTO_#3396]
Spaces in file and directory names is an issue for the build
system and throws an error when sourcing the environment
setup script. I added key notes in several areas of the doc
set. I also added some cross-references to the oe-init-build-env
section in some other areas where running the script is discussed.
(From yocto-docs rev: 1d102e91ba77391096749bd7df6c05b2b695b33f)
Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>