fix(docs): minor syntax type in faq.rst

docs/faq.rst

@@ -49,7 +49,7 @@ Can I use ``pook`` with a custom HTTP traffic mock interceptor engine?
 Yes, you can. ``pook`` is very modular and open for extensibility.
 
 You can programmatically define the HTTP traffic mock engine you want to use via
-`pook.set_mock_engine(engine)``. This will replace the built-in one.
+``pook.set_mock_engine(engine)``. This will replace the built-in one.
 
 This can be particularly useful if you are already using another HTTP mocking
 engine that satisfy your needs, but you want to take benefit of ``pook``