Clarify documentation
There are currently no pipelines.
To run a merge request pipeline, the jobs in the CI/CD configuration file must be configured to run in merge request pipelines and you must have sufficient permissions in the source project.
I made some small changes to the CONTRIBUTING.md file, so that the process of setting up the project is smoother. Said changes entail rectifying the JDK version, and explicitly stating that the format of the spring mailing properties should not contain the curly braces.
To run a merge request pipeline, the jobs in the CI/CD configuration file must be configured to run in merge request pipelines and you must have sufficient permissions in the source project.