Document $(OPENSSL) use case a little better
Document $(OPENSSL) use case a little better

atyndall/openconnect,nmav/openconnect-mine,mtmiller/openconnect,chadcatlett/openconnect,mveplus/openconnect-client,mdutton3/OpenConnect,don-johnny/openconnect,brandt/openconnect,brandt/openconnect,ldx/android_external_openconnect,nmav/openconnect-mine,certik/openconnect,mveplus/openconnect-client,brandt/openconnect,don-johnny/openconnect,lins05/openconnect,sihde/openconnect,chadcatlett/openconnect,atyndall/openconnect,cernekee/openconnect,mveplus/openconnect-client,don-johnny/openconnect,mveplus/openconnect-client,don-johnny/openconnect,matlockx/openconnect,liiir1985/openconnect,nmav/openconnect-mine,pbrook/openconnect,matlockx/openconnect,certik/openconnect,liiir1985/openconnect,neshema/openconnect,sihde/openconnect,neshema/openconnect,ldx/android_external_openconnect,mtmiller/openconnect,mtmiller/openconnect,certik/openconnect,atyndall/openconnect,matlockx/openconnect,lins05/openconnect,chadcatlett/openconnect,matlockx/openconnect,nmav/openconnect-mine,cernekee/openconnect,chadcatlett/openconnect,mdutton3/OpenConnect,lins05/openconnect,brandt/openconnect,neshema/openconnect,mtmiller/openconnect,lins05/openconnect,liiir1985/openconnect,liiir1985/openconnect,jku/openconnect,mdutton3/OpenConnect,cernekee/openconnect,atyndall/openconnect,neshema/openconnect,cernekee/openconnect,jku/openconnect,sihde/openconnect,pbrook/openconnect