remove rc version

Signed-off-by: zhengkezhou1 <[email protected]>

Author: zhengkezhou1

docs/proposals/004-endpoint-picker-protocol/README.md

@@ -11,12 +11,12 @@ The EPP MUST implement the Envoy
 
 ## Version History
 
-| Version     | Date | Changes |
-|-------------|------|---------|
-| dev-main    | 2025-07-29 | Added status metadata field for picked endpoints |
-| v0.4.0-rc.1 | 2025-06-03 | Added support for multiple fallback endpoints |
-| v0.3.0-rc.1 | 2025-03-14 | Added subsetting and fallback support |
-| v0.2.0-rc.1 | 2025-02-22 | Initial protocol definition |
+| Version  | Date       | Changes                                          |
+|----------|------------|--------------------------------------------------|
+| dev-main | 2025-07-29 | Added status metadata field for picked endpoints |
+| v0.4.0   | 2025-06-03 | Added support for multiple fallback endpoints    |
+| v0.3.0   | 2025-03-14 | Added subsetting and fallback support            |
+| v0.2.0   | 2025-02-22 | Initial protocol definition                      |
 
 ## Endpoint Subset