Update README

Signed-off-by: Alex Ellis <[email protected]>

Author: alexellis

README.md

@@ -1,3 +1,15 @@
 # faas-memory
 
-An in-memory implementation of the OpenFaaS provider API. Useful for testing some gateway functionality.
+faas-memory implements the OpenFaaS provider API and uses in-memory objects to store state.
+
+## Purpose
+
+This provider was created for integration testing and as a first-class example of an OpenFaaS provider for others to follow. It implements the [faas-provider](https://github.com/openfaas/faas-provider) interface.
+
+## Getting started
+
+Coming soon..
+
+## Acknowledgements
+
+This provider was built by Edward Wilde.