User guide for the hfbcs-qrpa(v1) code

Abstract: We briefly explain the structure of the Hartree-Fock-Bardeen-Cooper-Schrieffer (HFBCS) and Quasi-particle Random Phase Approximation (QRPA) code hfbcs-qrpa, highlighting only the differences with the code skyrme_rpa that has been previously published [G. Col`o, L. Cao, N. Van Giai, and L. Capelli, Comp. Phys. Comm. 184, 142 (2013)]. The code deals with open shell spherical systems and non-spin flip, non-charge-exchange and natural parity $(-1)^l$ excitations.