[docs] bytearray and language usage.

[Mark Janssen]

> This should not be called a "mutable sequence of integers", because to
> call them "integers" already casts raw bits into a particular *type*.
> They could, hypothetically be very short floats, for example.
>
> More accurately, they are merely "uninterpreted bits presented to the
> user in 8-bit chunks, with a consistent starting boundary" (held by
> the machine storage address).

Perhaps a better suggestion is to call them an 'uninterpreted sequence
of bits, presented to the user in 8-bit "chunks" (i.e. bytes).'
-- 
MarkJ
Tacoma, Washington