Update README.rst
Update README.rst
inventage/logstash_forwarder-formula,h3x3d/logstash_forwarder-formula,FEI-Lithicon/logstash_forwarder-formula,catalyzeio/logstash_forwarder-formula,scornelissen85/logstash_forwarder-formula,elevennl/logstash_forwarder-formula,saltstack-formulas/logstash_forwarder-formula,dpz/logstash_forwarder-formula