Change APL getting started guide to KBL getting started guide;
Merge some of the contents into preempt-rt getting started guide;
Move the modified kbl getting started guide to the behind of the configuration tutorials;
Fix issues for acrn_quick_setup.sh script.
Signed-off-by: lirui34 <ruix.li@intel.com>
Fix some stray UTF-8 punctuation and symbol characters, unnecessary
trademark symbols, and some misspellings missed during regular reviews.
Tracked-On: #2712
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
