Merge bitcoindevkit/bdk#1089: fix: Correct the coin type in the derivation path for...

21206fe773a6ebb9f12c534ccb0bfbd694684b58 fix: Correct the coin type in the derivation path for the three wallet examples (Casey Bowman)

Pull request description:

  Corrects the derivation path for the three wallet examples. For testnet, the coin type should be 1 instead of 0.

  Replaces #1076

ACKs for top commit:
  danielabrozzoni:
    ACK 21206fe773a6ebb9f12c534ccb0bfbd694684b58

Tree-SHA512: c323d90f16f338a1a678e28aa681b28848d8c5f02fd769dbf165d3a13df7804abed14760cf0dbe2be6194b107b25980b54be4703f36a7db63f6484c244dd3728