Updated README

apps/cli/utilities/wf_monitor/README.md

-# Workflow Monitor
+# Workspaces Workflow Monitor
+
+Reads in an HTCondor log file and parses the relevant data from it, splitting it into events and formatting those into messages that are sent to the workspaces.workflow-service.workflow-status RabbitMQ exchange.
+
+```
+usage: wf_monitor [-h] [-P PROFILE] log_path
+
+Workspaces workflow monitor, version 4.0.0a1.dev1. Monitor execution of a workflow from the command line.
+
+positional arguments:
+  log_path              path to the workflow's HTCondor log
+
+optional arguments:
+  -h, --help            show this help message and exit
+  -P PROFILE, --profile PROFILE
+                        profile name to use; e.g. test, production; DEFAULT: nmtest
+```
+
 ## Design
 - Reads in HTCondor logs
     - HTCondor executes a job