Update orientation of GNSS module installation illustration in Wiki

[philltran]

I suggest updating orientation of GNSS module installation illustration in Wiki. I helped someone troubleshoot their WisBlock mapper who installed the GNSS module backwards on the baseboard because they matched the orientation on the illustration.

Attached is my suggested edit.

Thanks for the great tutorial!

[johansmacias]

Nice finding. Thank you for your suggestion and comments! We've applied it on this wiki and the other sites where this tutorial is published.