[STYLE] Added missing language fence to markdown (- WIP PR #429 -)

Changes in file docs/FAQ.md:
 * style fixes

Author: reactive-firewall

docs/FAQ.md

@@ -363,7 +363,7 @@ sequenceDiagram
 > will be first and still be-able to intercept the module's `logging.LogRecords` just as it
 > normally would.
 
-```
+```python3
 import logging
 multicast_logging_sink = logging.getLogger()
 multicast_logging_sink.setLevel(logging.INFO)  # optional, otherwise the module is very quiet