Documentation: Add empty line after heading
@@ -72,6 +72,7 @@ At this point the key database should have this structure:
![Elektras namespaces](/doc/images/tutorial_namespaces_namespaces.svg)
#### Cascading Keys ####
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Another question you may ask yourself now is, what happens if we lookup a key without providing a namespace. So let us retrieve the key **/b/c** with the -v flag in order to make _kdb_ more talkative.
```sh
