Link /anonymous_internet/no-wifi from /doc/advanced_topics/wireless_devices
Right now /doc/advanced_topics/wireless_devices is the 1st result on DuckDuckGo when searching for "wifi".
In 96b185d4, I'm moving the Wi-Fi troubleshooting instructions to a dedicated page.
We should check this DuckDuckGo search again after 4.20.
We should anyway link to /anonymous_internet/no-wifi from /doc/advanced_topics/wireless_devices after %Tails_4.20.