Missing irecv docs

[cwpearson]

kokkos-comm/src/KokkosComm.hpp

Lines 38 to 41 in 2e34aef

	template <KokkosView RecvView>
	void irecv(RecvView &rv, int src, int tag, MPI_Comm comm, MPI_Request req) {
	return Impl::irecv(rv, src, tag, comm, req);
	}

kokkos-comm/docs/api/core.rst

Line 36 in 2e34aef

Point-to-point

[dssgabriel]

Addressed by #109, closing.