FAQ: fix error message
FAQ: fix error message

The package is called bcc, and not bpf:

    from bcc import BPF

If that is not available the error message reads

    ModuleNotFoundError: No module named 'bcc'

and not `No module named 'bpf'`
brendangregg/bcc,tuxology/bcc,tuxology/bcc,tuxology/bcc,iovisor/bcc,iovisor/bcc,brendangregg/bcc,iovisor/bcc,brendangregg/bcc,tuxology/bcc,iovisor/bcc,brendangregg/bcc,iovisor/bcc,tuxology/bcc,brendangregg/bcc