Updating HAProxy snapshot documentation v1.5.4-22 generated by haproxy-dconv v0.3.1-23

47067ca DOC: indicate that weight zero is reported as DRAIN
Updating HAProxy snapshot documentation v1.6-dev0-102 generated by haproxy-dconv v0.3.1-23

c5af3a6 DOC: indicate that weight zero is reported as DRAIN