Fix wrong snippet syntax in core runtime documentation
Fix wrong snippet syntax in core runtime documentation

Qi4j/qi4j-sdk,apache/zest-qi4j,apache/zest-qi4j,Qi4j/qi4j-sdk,apache/zest-qi4j,apache/zest-qi4j,Qi4j/qi4j-sdk,Qi4j/qi4j-sdk,Qi4j/qi4j-sdk,apache/zest-qi4j