Document wireless card needs to remove kernel module to work in known issues

Reported by user, log available. Same problem in Tails 2.11 and Tails 3.0beta3

The wireless card:

02:00.0 Network controller: Intel Corporation Wireless 7265 (rev 61)

Needs this command after boot to work:

sudo modprobe -r acer_wmi

Original created by @emmapeel on 12430 (Redmine)

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