Spring Batch JDBC depency is needed, not Spring Batch

[alpengiraffe]

issue

README.adoc and link for pre-initialized project refer to Spring Batch as depency

However Spring Batch JDBC is needed
(as used in https://github.com/spring-guides/gs-batch-processing/blob/main/complete/pom.xml)

possible solution

change the following in README.adoc

• change link for pre-initialized project to
  https://start.spring.io/#!type=maven-project&groupId=com.example&artifactId=batch-processing&name=batch-processing&description=Demo%20project%20for%20Spring%20Boot&packageName=com.example.batch-processing&dependencies=batch-jdbc,hsql

• change section 'To manually initialize the project:'
  from Click Dependencies and select Spring Batch and HyperSQL Database.
  to Click Dependencies and select Spring Batch JDBC and HyperSQL Database.

[alpengiraffe]

Maybe this was also the reason for #82 ?