Update README.md

Author: johnA1331

spring-cloud/spring-cloud-openfeign/README.md

@@ -3,3 +3,4 @@
 - [Introduction to Spring Cloud OpenFeign](https://www.baeldung.com/spring-cloud-openfeign)
 - [Differences Between Netflix Feign and OpenFeign](https://www.baeldung.com/netflix-feign-vs-openfeign)
 - [File Upload With Open Feign](https://www.baeldung.com/java-feign-file-upload)
+- [Feign Logging Configuration](https://www.baeldung.com/java-feign-logging)