JUnit output format to Markdown

Almost all test runners has an option to deliver test execution results in the JUnit XML format.
It has become a type of standard output format for all kinds of tests and build pipelines and other automatically collect it. However it's not very well suited for Jira that doesn't natively has a mean to do anything with the format.

Since many of the test management plugins for Jira has a (Atlassian Marketplace enforced) license model based on number of users of the Jira instance many feel they want to stear away from them and find a solution of their own.

For publishing test results from automatic test execution this poses a problem. We want the non-technical stakeholders of the test automation results to have easy access to the information. Many organizations using Jira also uses Atlassian Confluence. Confluence natively uses Markdown for information sharing.