docs(responder-teams): ENABLE-4546 update docs on how to manage respo…

…nder teams (#36)

Co-authored-by: Bharath <cippy.bharath@gmail.com>

README.md

@@ -39,3 +39,26 @@ const bucket2 = new Bucket(this, 'AnotherImageryArchive');
 applyTags(bucket1, commonTags);
 applyTags(bucket2, commonTags);
 ```
+## Contributing
+
+### Responder Teams
+
+Responder teams are used to route alerts to the correct team in OpsGenie. The responder team name must match the team name in OpsGenie.
+Only prod ops team members can create, rename or remove responder teams in OpsGenie.
+
+#### Adding responder teams.
+
+Contact the prod ops team in slack at [#team-step-prod-ops](https://linz.enterprise.slack.com/archives/C05Q11EGLA0) to create a new team in [OpsGenie](https://toitutewhenua.app.opsgenie.com/teams/list).
+Once this team is created, add a new responder team to `src/responder-teams.ts` file with the new team name. These two names 
+must match to ensure New Relic alerts are sent to the correct team.
+
+#### Renaming responder teams.
+**Warning** Consult the prodOps team regarding renaming a responder team. It is strongly recommended to never rename responder team names as this results in the teams having to apply the new responderTeam value to all their cdk stacks. 
+When renaming a responder team, contact the prod ops team in slack at [#team-step-prod-ops](https://linz.enterprise.slack.com/archives/C05Q11EGLA0)
+once the name as been updated, update `src/responder-teams.ts` to match the new name. And ensure you update the `responderTeam` in your `applyTags()` function across all stack the team owns.
+
+#### Removing responder teams.
+
+When removing a responder team, contact the prod ops team in slack at [#team-step-prod-ops](https://linz.enterprise.slack.com/archives/C05Q11EGLA0)
+once the team has been removed, remove the team from `src/responder-teams.ts` file.
+And ensure you remove the `responderTeam` from your `applyTags()` function.