Remove double negations
I had to re-read this sentence twice before understanding what the recommendation was.
@@ -14,4 +14,4 @@ Glossary
master
uWSGI's built-in prefork+threading multi-worker management mode,
activated by flicking the ``master`` switch on. For all practical serving
- deployments it's not really a good idea *not* to use master mode.
+ deployments it is generally a good idea to use master mode.
