Looks good to me, except that the doc files (COPYING, README.md, CONTRIBUTE.md) should probably better be installed to the "standard" location (i.e. /usr/share/doc/packages/avogadrolibs/, not /usr/share/doc/AvogadroLibs/avogadrolibs/) I think.

See my SR to KUA... https://build.opensuse.org/request/show/447961