GBTC Premium with MA smoothing

GBTC Premium based on formula published online.
With smoothing.

發布通知:

Added STD Dev bands in white based on EMA value and inputs added for len and # of std dev's

發布通知:

Added input fields for std-dev, changed coloring for legibility, removed fill between EMA and VWMA.

發布通知:

Updated the # BTC/share per Greyscale.

發布通知:

Updated new BTC/share rate