roadmap: add 1.0 items and clean things up

Author: dcbw

ROADMAP.md

@@ -5,29 +5,19 @@ The list below is not complete, and we advise to get the current project state f
 
 ## CNI Milestones
 
-### [v0.2.0](https://github.com/containernetworking/cni/milestones/v0.2.0)
+### [v0.6.0](https://github.com/containernetworking/cni/milestones/v0.6.0)
 
-* Signed release binaries
-* Introduction of a testing strategy/framework
-
-### [v0.3.0](https://github.com/containernetworking/cni/milestones/v0.3.0)
-
-* Further increase test coverage
-* Simpler default route handling in bridge plugin
-* Clarify project description, documentation and contribution guidelines
-
-### [v0.4.0](https://github.com/containernetworking/cni/milestones/v0.4.0)
-
-* Further increase test coverage
-* Simpler bridging of host interface
-* Improve IPAM allocator predictability
-* Allow in- and output of arbitrary K/V pairs for plugins
+- Plugin composition functionality
+- IPv6 support
+- Strategy and tooling for backwards compatibility
+- Integrate build artefact generation with CI
 
 ### [v1.0.0](https://github.com/containernetworking/cni/milestones/v1.0.0)
 
-- Plugin composition functionality
-- IPv6 support
+- More precise specification language
+- GET action
+- Conformance test suite for CNI plugins (both reference and 3rd party)
 - Stable SPEC
-- Strategy and tooling for backwards compatibility
 - Complete test coverage
-- Integrate build artefact generation with CI
+- Signed release binaries
+