Changing diaspora pod name in heroku

I had a working diaspora pod on herokru. But I want to change my pod name to something else but it seems to much complicated. As directed on https://wiki.diasporafoundation.org/Installation/Heroku I tried following these steps:

## You can set and/or override all these settings through environment variables
## with the following conversion rules:
## - Strip the top level namespace (configuration, production, etc.)
## - Build the path to the setting, for example environment.s3.enable
## - Replace the dots with underscores: environment_s3_enable
## - Convert to upper case: ENVIRONMENT_S3_ENABLE
## - Specify lists/arrays as comma-separated values

but did not understand what to do. Can anybody please explain me what the exact way of changing the pod name

Let's copy paste my email reply again.

## You can set and/or override all these settings through environment variables
## with the following conversion rules:
## - Strip the top level namespace (configuration, production, etc.)
## - Build the path to the setting, for example environment.s3.enable
## - Replace the dots with underscores: environment_s3_enable
## - Convert to upper case: ENVIRONMENT_S3_ENABLE
## - Specify lists/arrays as comma-separated values
##
## - For example, on Heroku:
##   heroku config:set SERVICES_FACEBOOK_APP_ID=yourappid SERVICES_FACEBOOK_SECRET=yourappsecret

```

Let's copy paste the example explaining how to configure your pod and replace the setting.

## You can set and/or override all these settings through environment variables
## with the following conversion rules:
## - Strip the top level namespace (configuration, production, etc.)
## - Build the path to the setting, for example settings.pod_name
## - Replace the dots with underscores: settings_pod_name
## - Convert to upper case: SETTINGS_POD_NAME
## - Specify lists/arrays as comma-separated values
##
## - For example, on Heroku:
##   heroku config:set SETTINGS_POD_NAME="My cool diaspora"