[wiki] fix indentation of release notes for proper github rendering
[wiki] fix indentation of release notes for proper github rendering

Change-Id: I70cb86839ad07cba0b8560200a4e463d3130fb04

bmwcarit/joynr,bmwcarit/joynr,bmwcarit/joynr,bmwcarit/joynr,bmwcarit/joynr,bmwcarit/joynr,bmwcarit/joynr,bmwcarit/joynr,bmwcarit/joynr