10. QUERY_POSTS
WHEN YOU WANT TO CHANGE THE MAIN LOOP
EXCLUDE CATEGORIES FROM MAIN LOOP
SHOW POSTS FROM ONLY ONE CATEGORY.
11. IMPORTANT NOTE
THE QUERY_POSTS FUNCTION IS INTENDED TO BE USED
TO MODIFY THE MAIN PAGE LOOP ONLY. IT IS NOT
INTENDED AS A MEANS TO CREATE SECONDARY LOOPS
ON THE PAGE. IF YOU WANT TO CREATE SEPARATE
LOOPS OUTSIDE OF THE MAIN ONE, YOU SHOULD USE
GET_POSTS() INSTEAD. USE OF QUERY_POSTS ON LOOPS
OTHER THAN THE MAIN ONE CAN RESULT IN YOUR MAIN
LOOP BECOMING INCORRECT AND POSSIBLY DISPLAYING
THINGS THAT YOU WERE NOT EXPECTING.
THE QUERY_POSTS FUNCTION OVERRIDES AND
REPLACES THE MAIN QUERY FOR THE PAGE. TO SAVE
YOUR SANITY, DO NOT USE IT FOR ANY OTHER PURPOSE.