You won't find directions because its a fairly easy, straight forward job.
When you buy your new hoses you will see the retaining clip on the end of each hose. By inspecting the new hoses, you will understand how to remove the clip on the old hoses. I use cheap shop tweezers to reach into a tight area, grab the clip and pull the clip off a hose. Once you pull the clip, you simply yank the hose off. To replace a hose you simply push it on, clip installed, till it seats. Make sure it seats completely, especially the lower hoses, where they join together beneath the radiator.
Changing hoses mean your flushing coolant too. Lots of discussion about this; what sort of cleaners to use, what coolant to use, how to flush properly, how to fill properly, ......