Change Details

and improve style of the ECDH docs. This is a backport of libsecp256k1 PR718 Depends on D5389

and improve style of the ECDH docs. This is a backport of libsecp256k1 [[https://github.com/bitcoin-core/secp256k1/pull/718 | PR718]] Depends on D5389

and improve style of the ECDH docs. This is a backport of libsecp256k1 [[https://github.com/bitcoin-core/secp256k1/pull/718 | PR718]] Depends on D5389