Region note and MAC address note

[WiiExpertise]

As I have seen people have trouble with freezes due to selecting the incorrect region (since Geo-IP has been broken for some time, the site now defaults to 4.3E regardless of location), added an extra reminder about the region.

Also added a note about ensuring that the console's MAC address is noted, not the LAN adapter MAC address.

[Peter0x44]

I think the sentence is too long. how about moving it to a note below the list, worded something like:

Ensure that the correct region is selected, as 4.3E (Europe) is selected by default.
The exploit will not work if the wrong region is selected.

[WiiExpertise]

Possible. I just figured it would be a good idea for it to be somewhere where users would see it before finishing up work on the site so they don't have to go back later, since many users follow the guide step by step without bothering to read the whole thing first before starting.