doc: Added samplessh hint to INSTALL.
doc: Added samplessh hint to INSTALL.

substack/libssh,DouglasHeriot/libssh,robxu9/libssh,sebadoom/libssh,sebadoom/libssh,kedazo/libssh,nviennot/libssh,kedazo/libssh,rofl0r/libssh,bigcat26/libssh-mod,miloj/libssh-v0.5,elastichosts/libssh,pouete/libssh,substack/libssh,jahrome/libssh,mwgoldsmith/libssh,DouglasHeriot/libssh,kedazo/libssh,taikoo/libssh,miloj/libssh-v0.5,Distrotech/libssh,miloj/libssh-v0.5,DouglasHeriot/libssh,jahrome/libssh,elastichosts/libssh,robxu9/libssh,mwgoldsmith/libssh,mwgoldsmith/ssh,pouete/libssh,robxu9/libssh,robxu9/libssh,mwgoldsmith/ssh,substack/libssh,wangshawn/libssh,pouete/libssh,jt1/honeypot-libssh,elastichosts/libssh,jt1/honeypot-libssh,jahrome/libssh,taikoo/libssh,nviennot/libssh,rofl0r/libssh,wangshawn/libssh,rofl0r/libssh,pouete/libssh,bigcat26/libssh-mod,wangshawn/libssh,jahrome/libssh,sebadoom/libssh,taikoo/libssh,taikoo/libssh,miloj/libssh-v0.5,DouglasHeriot/libssh,sebadoom/libssh,nviennot/libssh,bigcat26/libssh-mod,mwgoldsmith/libssh,rofl0r/libssh,Distrotech/libssh,mwgoldsmith/ssh,mwgoldsmith/ssh,bigcat26/libssh-mod,kedazo/libssh,jt1/honeypot-libssh,Distrotech/libssh,Distrotech/libssh,nviennot/libssh,mwgoldsmith/libssh,jt1/honeypot-libssh,wangshawn/libssh,substack/libssh