fixup: double back ticks

Author: arunkannawadi

stack/transferring-code.rst

@@ -87,7 +87,7 @@ this can be achieved by importing code from the destination repository with an a
 trivially repackaging it following the deprecation procedure described in
 :doc:`Deprecating Interfaces <deprecating-interfaces>`.
 
-As an example, if a Python class `ConfigurableAction` is moved from package `analysis_tools` (downstream) to `pex_config` (upstream),
+As an example, if a Python class ``ConfigurableAction`` is moved from package ``analysis_tools`` (downstream) to ``pex_config`` (upstream),
 
 .. code-block:: python