Migrate Spring links for issues from Jira to GitHub

Author: arey

readme.md

@@ -218,9 +218,9 @@ Here is a list of them:
 
 | Name | Issue |
 |------|-------|
-| Spring JDBC: simplify usage of NamedParameterJdbcTemplate | [SPR-10256](https://jira.springsource.org/browse/SPR-10256) and [SPR-10257](https://jira.springsource.org/browse/SPR-10257) |
+| Spring JDBC: simplify usage of NamedParameterJdbcTemplate | [SPR-10256](https://github.com/spring-projects/spring-framework/issues/14889) and [SPR-10257](https://github.com/spring-projects/spring-framework/issues/14890) |
 | Bean Validation / Hibernate Validator: simplify Maven dependencies and backward compatibility |[HV-790](https://hibernate.atlassian.net/browse/HV-790) and [HV-792](https://hibernate.atlassian.net/browse/HV-792) |
-| Spring Data: provide more flexibility when working with JPQL queries | [DATAJPA-292](https://jira.springsource.org/browse/DATAJPA-292) |
+| Spring Data: provide more flexibility when working with JPQL queries | [DATAJPA-292](https://github.com/spring-projects/spring-data-jpa/issues/704) |
 | Dandelion: improves the DandelionFilter for Jetty support | [113](https://github.com/dandelion/dandelion/issues/113) |