add readme

Author: zeitlinger

baggage-processor/README.md

@@ -51,8 +51,8 @@ logger_provider:
         excluded: [bar]
 ```
 
-This will configure the respective processor to include baggage keys listed in `included` and 
-exclude those in `excluded` as explained in 
+This will configure the respective processor to include baggage keys listed in `included` and
+exclude those in `excluded` as explained in
 [Properties which pattern matching](https://github.com/open-telemetry/opentelemetry-configuration/blob/main/CONTRIBUTING.md#properties-which-pattern-matching).
 
 ### Usage through programmatic activation