Update RELEASE.md

RELEASE.md

 For releasing a new version, please have a look at the [DARIAH-DE Release Management Page] (https://wiki.de.dariah.eu/display/DARIAH3/DARIAH-DE+Release+Management).
 
-Specials in OAI-PMH Service releases are the following:
-
-* Please set the **RELEASE** version to “x.y.z-RELEASE"
-
-* Please set the **SNAPSHOT** version to “x.y.z-SNAPSHOT“
+Please set the **SNAPSHOT** version to “x.y.z-SNAPSHOT“ and the **RELEASE** version to “x.y.z-RELEASE"!