c3102f04de Fix link to BIP-113 (Tobin C. Harding)
Pull request description:
Current rustdocs link is not correct. Just remove the brackets because we have a fully labelled link right below.
ACKs for top commit:
apoelstra:
ACK c3102f04dea27388e830e619a43e8b1130bd2d08; successfully ran local tests
Tree-SHA512: 71e41b3bd929fd8ed4e6aa790d73ba33132856dc1b3b7d36afde73f94c1953898814f851caf7004ba1a456d3af107513733a4df810c1b1ce74a3e332b156d97b