automation - fix README prepare release

Author: frantuma

CI/prepare-release.sh

@@ -29,7 +29,7 @@ mvn versions:commit
 ### update all other versions in files around to the new release, including readme ###
 #####################
 sc_find="<version>$SC_LAST_RELEASE"
-sc_replace="<version>$SC_NEXT_VERSION"
+sc_replace="<version>$SC_VERSION"
 sed -i -e "s/$sc_find/$sc_replace/g" $CUR/README.md