Display output from rate.sx in a buffer.

rate-sx.el provides a main command, rate-sx, which displays the output of rate.sx in a buffer.

Other commands provide ways to quickly calculate currency totals, they include:

Show the result of a currency calculation in the minibuffer. Calculations are things like 1BTC+12ETH (would show the total value, in the base currency defined by rate-sx-default-currency, of holding 1 BTC and 12 ETH).

Same as above but takes the input from the content of the marked region.

Same as above again, but performs rate-sx-calc-region if there is an active mark, otherwise it performs rate-sx-calc.