NMS-9000: Add invert-status to monitor documentation Created a common configuration section and added retry, timeout and invert-status parameter description. This parameters are available in all monitor configurations. In case the specific Monitor overwrites default value the parameter is still in the Monitor documentation and represents the specific value.
Each monitor got a generic line with a link to the common configuration section as reference.
Additionally monitor documentation got minor clean ups for consistency, like new lines for sentences, indentation in admonitions and tables. Replaced OpenNMS product name with variable _