Separate out "scans at all" from authentication

This makes it a clearer that the component does something worthwhile,
and is lacking mainly in platform-specific support.

Signed-off-by: Michael Bridgen <michael@weave.works>

docs/roadmap/index.md

@@ -56,11 +56,16 @@ Non-Goals
 Tasks
 
 - [x] <span style="color:grey">[Design the image scanning and automation API](https://github.com/fluxcd/flux2/discussions/107)</span>
-- [ ]  Implement an image scanning controller
+- [x] <span style="color:grey">Implement an image scanning controller</span>
+- [x] <span style="color:grey">Public image repo support</span>
+- [ ] Credentials from Secret [fluxcd/image-reflector-controller#35](https://github.com/fluxcd/image-reflector-controller/pull/35)
+- [ ] ECR-specific support [fluxcd/image-reflector-controller#11](https://github.com/fluxcd/image-reflector-controller/issues/11)
+- [ ] GCR-specific support [fluxcd/image-reflector-controller#11](https://github.com/fluxcd/image-reflector-controller/issues/11)
+- [ ] Azure-specific support [fluxcd/image-reflector-controller#11](https://github.com/fluxcd/image-reflector-controller/issues/11)
 - [x] <span style="color:grey">Design the automation component</span>
-- [ ]  Implement the image scan/patch/push workflow
+- [x] <span style="color:grey">Implement the image scan/patch/push workflow</span>
 - [ ] Integrate the new components in the Flux CLI
-- [ ]  Create a migration guide from Flux annotations
+- [ ] Write a migration guide from Flux annotations
 
 ## The road to Helm Operator v2