fix link

Author: jack-berg

processors/README.md

@@ -28,7 +28,7 @@ logger_provider:
     - event_to_span_event_bridge: {}
 ```
 
-// TODO(jack-berg): remove "{}" after merging / rle https://github.com/open-telemetry/opentelemetry-java/pull/6891/files
+// TODO(jack-berg): remove "{}" after releasing [opentelemetry-java#6891](https://github.com/open-telemetry/opentelemetry-java/pull/6891/files)
 
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