general: update readme

README.md

@@ -1,2 +1,23 @@
-# check_perccli
+# perccli-status
 Nagios/Opsview plugin to check status of PowerEdge RAID Controller
+
+Mimics `megaclisas-status` and `megaclisas-status --nagios`, uses `perccli2`.
+
+
+## Install
+
+```
+git clone
+```
+
+## Development
+
+```
+git clone [email protected]:bodik/perccli-status.git /opt/perccli-status
+cd /opt/perccli-status
+python3 -m venv venv
+. venv/bin/activate
+pip install -r requirements-dev.lock
+make coverage
+make lint
+```