Update README.md

Author: bruce-atkinson

README.md

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 # PaySubs_WHMCS
-This is the DPO PayGate PaySubs (VCS) plugin for WHMCS.
+## DPO PayGate PaySubs (VCS) WHMCS plugin v1.0.0 for WHMCS v7.4.6
+
+This is the DPO PayGate PaySubs (VCS) plugin for WHMCS. Please feel free to contact the DPO PayGate support team at support@paygate.co.za should you require any assistance.
+
+## Installation
+Please navigate to the [releases page](https://github.com/PayGate/PaySubs_WHMCS/releases), download the latest release (v1.0.0) and unzip. You will them be able to follow the integration guide which is included in the zip.
+
+## Collaboration
+
+Please submit pull requests with any tweaks, features or fixes you would like to share.
+
+## About PaySubs
+
+[PaySubs](https://www.paygate.co.za/paygate-products/paysubs/) allows you to create a recurring (subscription) payment for your Customer. This can be done manually using the PayGate Merchant Portal or your Customer can activate the subscription using an API integration. A Process Now function enables the first transaction to be processed in real-time (when captured via a web site API integration) and the balance to be processed at future dates.