TBR: mojo.v23proxy: update 'docs' references to point to vanadium.github.io
TBR: mojo.v23proxy: update 'docs' references to point to vanadium.github.io

MultiPart: 13/27

Change-Id: I9f92de8e721702b7a8545625bc997c73d92c651e

vanadium/mojo.v23proxy,vanadium/mojo.v23proxy