Add event for Docker Cambridge on 20th Nov 2017

Signed-off-by: Will Hall <will@willhallonline.co.uk>

community.md

@@ -19,6 +19,7 @@ There are three main Github repos
 | Event name and description                                          | Speaker      | Location | Date        |
 |---------------------------------------------------------------------|--------------|----------|-------------|
 | [OpenFaaS @ KubeCon + CloudNativeCon](https://kccncna17.sched.com/event/CU6s/faas-and-furious-0-to-serverless-in-60-seconds-anywhere-alex-ellis-adp) | Alex Ellis | Austin, USA | 07-Dec-2017 |
+| [OpenFaaS - Serverless Functions Made Simple @ Docker Cambridge Meetup](https://www.meetup.com/docker-cambridge/events/243206434/) | John McCabe | Cambridge, UK | 20-Nov-2017 |
 | [Docker Belfast Meetup](https://www.meetup.com/Docker-Belfast/) | John McCabe | Belfast, Northern Ireland | 31-Oct-2017 |
 | [Belfast Gophers Meetup](https://www.meetup.com/Belfast-Gophers/) | John McCabe | Belfast, Northern Ireland | 26-Oct-2017 |
 | [Introduction to Serverless with OpenFaaS - Moby Summit](https://europe-2017.dockercon.com/moby-summit/) | Alex Ellis | Copenhagen | 19-Oct-2017 |