feat(README): add extra places to look for docs

README.md

@@ -3,6 +3,15 @@
 This project contains the default renovatebot configuration which is extended by renovatebot's
 onboarding PRs.
 
+## Other places to look
+
+* The [terraform configuration which deploys
+    renovatebot](https://gitlab.developers.cam.ac.uk/uis/devops/infra/gitlab-bots-deployment/).
+* The DevOps-specific [operational
+    documentation](https://uis.uniofcam.dev/devops/infra/gitlab-bots-deployment/) for
+    renovatebot.
+* The [upstream renovatebot documentation](https://docs.renovatebot.com/).
+
 ## The default config
 
 We extend the [config:recommended](https://docs.renovatebot.com/presets-config/#configrecommended)