Docs update (#172)

Adds some information and screen shots for the monitor

README.md

@@ -5,8 +5,12 @@
 
 # edge_containers_cli
 
+## About
+
 Edge containers command line interface: a tool for deploying and managing
-IOCs and services in a beamline or accelerator cluster.
+IOCs in a beamline or accelerator cluster. The tool is a thin wrapper around
+familiar command line tools such as git, kubectl, helm and argocd - and can
+be used to learn the underlying commands being used.
 
 For detailed documentation on the framework that this supports see:
 https://epics-containers.github.io/
@@ -19,7 +23,25 @@ Releases        | <https://github.com/epics-containers/edge-containers-cli/relea
 
 
 To discover the CLI commands, create a python virtual environment,
-and perform the following::
+and perform the following:
 
     pip install edge-containers-cli
     ec --version
+
+## Monitor
+
+Some commands of the tool are also exposed as a TUI which can additionally be served as
+a web application.
+
+To demo the TUI as a web application:
+
+    pip install textual-dev
+    textual serve "ec -b DEMO monitor"
+
+Dashboard:
+
+![screenshot](docs/images/ec-web.png)
+
+IOC logs:
+
+![screenshot](docs/images/ec-logs.png)