Add info on updating a resource with PUT
Add info on updating a resource with PUT

PUT is not necessarily an update; add info to indicate that.

Also reformat some lines to wrap at 100 characters.

OpenLMIS/openlmis-template-service,OpenLMIS/openlmis-template-service,OpenLMIS/openlmis-template-service,OpenLMIS/openlmis-template-service