Use rsync instead of cp to copy the built files
Use rsync instead of cp to copy the built files

Copying the entire directory into the gh-pages repository's directory
results in the docs directory being in the build/gh-pages directory.
They should merge causing the contents of the docs directory to be
copied to the build/gh-pages directory, not the docs directory itself.

Xyphex/issi-model,Xyphex/issi-model