double backtick code in rst

Author: JMBurley

doc/source/whatsnew/v1.4.3.rst

@@ -44,7 +44,7 @@ Bug fixes
 Other
 ~~~~~
 - The minimum version of Cython needed to compile pandas is now ``0.29.30`` (:issue:`41935`)
-- Recommended dependencies `numexpr` & `bottleneck` can be managed as extras in a requirements/setup file pandas[numexpr,bottleneck]>=1.4.3 (:issue:`47335`)
+- Recommended dependencies ``numexpr`` & ``bottleneck`` can be managed as extras in a requirements/setup file eg. ``pandas[numexpr,bottleneck]>=1.4.3`` (:issue:`47335`)
 
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