Improved the release note formatting
Improved the release note formatting

mohamed-ali/PyTables,joonro/PyTables,PyTables/PyTables,jack-pappas/PyTables,joonro/PyTables,PyTables/PyTables,tp199911/PyTables,jack-pappas/PyTables,jennolsen84/PyTables,cpcloud/PyTables,rdhyee/PyTables,mohamed-ali/PyTables,jack-pappas/PyTables,cpcloud/PyTables,dotsdl/PyTables,dotsdl/PyTables,rabernat/PyTables,tp199911/PyTables,andreabedini/PyTables,jack-pappas/PyTables,joonro/PyTables,jennolsen84/PyTables,jennolsen84/PyTables,gdementen/PyTables,PyTables/PyTables,gdementen/PyTables,FrancescAlted/PyTables,gdementen/PyTables,jack-pappas/PyTables,rdhyee/PyTables,jennolsen84/PyTables,rabernat/PyTables,FrancescAlted/PyTables,rabernat/PyTables,avalentino/PyTables,rabernat/PyTables,andreabedini/PyTables,cpcloud/PyTables,joonro/PyTables,tp199911/PyTables,tp199911/PyTables,andreabedini/PyTables,avalentino/PyTables,andreabedini/PyTables,gdementen/PyTables,rdhyee/PyTables,dotsdl/PyTables,dotsdl/PyTables,FrancescAlted/PyTables,cpcloud/PyTables,rdhyee/PyTables,mohamed-ali/PyTables,mohamed-ali/PyTables,avalentino/PyTables