Add some installation instructions, and acknowledgement

README.md

@@ -1,3 +1,37 @@
 # jlc-chart
 
 Flask app to chart component stock levels from JLCPCB
+
+# Installation
+
+This app can be deployed in the same way as any other WSGI application.
+
+With Apache, that looks something like this:
+
+    WSGIDaemonProcess jlc-chart user=... group=... threads=2
+    WSGIScriptAlias /jlc-chart /path/to/jlc-chart/wsgi.py
+    WSGIScriptReloading On
+
+    <Directory /path/to/jlc-chart>
+        WSGIProcessGroup jlc-chart
+        WSGIApplicationGroup %{GLOBAL}
+        AuthType Basic
+        AuthName "Restricted Content"
+        AuthUserFile /path/to/.htpasswd
+        Require valid-user
+    </Directory>
+
+Once configuration is complete, the database must be initialised:
+
+    flask init-db
+
+Once up and running, a cron job must be created to perform the poll:
+
+    crontab -e
+    1   9       *       *       *       /path/to/jlc-chart/poll
+
+# Acknowledgements
+
+With thanks to Unipart Digital for graciously allowing me to retain copyright
+of this project after it was initially developed as an in-house tool.
+