Updated doc/builder submodule reference
Updated doc/builder submodule reference

basnijholt/holoviews,ioam/holoviews,basnijholt/holoviews,ioam/holoviews,basnijholt/holoviews,ioam/holoviews,vascotenner/holoviews,vascotenner/holoviews,vascotenner/holoviews