fix parent readmes

persistence-modules/README.md

@@ -1,17 +0,0 @@
-
-## Persistence Modules
-
-
-### Relevant Articles:
-
-- [Introduction to Hibernate Search](http://www.baeldung.com/hibernate-search)
-- [Introduction to Lettuce – the Java Redis Client](http://www.baeldung.com/java-redis-lettuce)
-- [A Guide to Jdbi](http://www.baeldung.com/jdbi)
-- [Pessimistic Locking in JPA](http://www.baeldung.com/jpa-pessimistic-locking)
-- [Get All Data from a Table with Hibernate](https://www.baeldung.com/hibernate-select-all)
-- [Spring Data with Reactive Cassandra](https://www.baeldung.com/spring-data-cassandra-reactive)
-- [Spring Data JPA – Derived Delete Methods](https://www.baeldung.com/spring-data-jpa-deleteby)
-- [Difference Between save() and saveAndFlush() in Spring Data JPA](https://www.baeldung.com/spring-data-jpa-save-saveandflush)
-- [Spring Boot with Hibernate](https://www.baeldung.com/spring-boot-hibernate)
-- [Persisting Maps with Hibernate](https://www.baeldung.com/hibernate-persisting-maps)
-- [Difference Between @Size, @Length, and @Column(length=value)](https://www.baeldung.com/jpa-size-length-column-differences)

persistence-modules/hibernate-mapping/README.md

@@ -2,3 +2,4 @@
 ### Relevant Articles: 
 
 - [Persisting Maps with Hibernate](https://www.baeldung.com/hibernate-persisting-maps)
+- [Difference Between @Size, @Length, and @Column(length=value)](https://www.baeldung.com/jpa-size-length-column-differences)

persistence-modules/java-jdbi/README.md

@@ -1 +1,3 @@
 ### Relevant Articles:
+
+- [A Guide to Jdbi](http://www.baeldung.com/jdbi)

persistence-modules/spring-data-jpa-2/README.md

@@ -12,3 +12,4 @@
 - [Spring Data JPA Projections](https://www.baeldung.com/spring-data-jpa-projections)
 - [JPA @Embedded And @Embeddable](https://www.baeldung.com/jpa-embedded-embeddable)
 - [Spring Data JPA Delete and Relationships](https://www.baeldung.com/spring-data-jpa-delete)
+- [Difference Between save() and saveAndFlush() in Spring Data JPA](https://www.baeldung.com/spring-data-jpa-save-saveandflush)

persistence-modules/spring-hibernate-5/README.md

@@ -3,3 +3,4 @@
 - [Hibernate Many to Many Annotation Tutorial](http://www.baeldung.com/hibernate-many-to-many)
 - [Programmatic Transactions in the Spring TestContext Framework](http://www.baeldung.com/spring-test-programmatic-transactions)
 - [JPA Criteria Queries](http://www.baeldung.com/hibernate-criteria-queries)
+- [Introduction to Hibernate Search](http://www.baeldung.com/hibernate-search)