📚 Update docker readme for updating n8n (#594)

Based on https://community.n8n.io/t/how-to-upgrade-n8n-with-docker-compose-setup/660/2
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Tin.cr 2020-05-26 17:28:00 -04:00 committed by GitHub
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@ -17,6 +17,7 @@ n8n is a free and open [fair-code](http://faircode.io) licensed node based Workf
- [Securing n8n](#securing-n8n)
- [Persist data](#persist-data)
- [Passing Sensitive Data via File](#passing-sensitive-data-via-file)
- [Updating a Tunning docker-compose Instance](#updating-a-running-docker-compose-instance)
- [Example Setup with Lets Encrypt](#example-setup-with-lets-encrypt)
- [What does n8n mean and how do you pronounce it](#what-does-n8n-mean-and-how-do-you-pronounce-it)
- [Support](#support)
@ -226,6 +227,18 @@ The following environment variables support file input:
A basic step by step example setup of n8n with docker-compose and Lets Encrypt is available on the
[Server Setup](https://docs.n8n.io/#/server-setup) page.
## Updating a running docker-compose instance
```
# Pull down the latest version from dockerhub
docker pull n8nio/n8n
# Stop current setup
sudo docker-compose stop
# Delete it (will only delete the docker-containers, data is stored separately)
sudo docker-compose rm
# Then start it again
sudo docker-compose up -d
```
## Setting Timezone