Remove enum from bold in doc (#5903)

* Remove enum from bold in doc

* [skip ci] Remove bold formatting around (see #5528)

---------

Co-authored-by: Ralf W. Grosse-Kunstleve <rgrossekunst@nvidia.com>

docs/advanced/functions.rst

diff --git a/docs/advanced/functions.rst b/docs/advanced/functions.rst
index ff00c9c..c647ae0 100644
--- a/docs/advanced/functions.rst
+++ b/docs/advanced/functions.rst
@@ -84,8 +84,8 @@
 | :enum:`return_value_policy::reference_internal`  | If the return value is an lvalue reference or a pointer, the parent object |
 |                                                  | (the implicit ``this``, or ``self`` argument of the called method or       |
 |                                                  | property) is kept alive for at least the lifespan of the return value.     |
-|                                                  | **Otherwise this policy falls back to :enum:`return_value_policy::move`    |
-|                                                  | (see #5528).** Internally, this policy works just like                     |
+|                                                  | **Otherwise this policy falls back to** :enum:`return_value_policy::move`  |
+|                                                  | (see #5528). Internally, this policy works just like                       |
 |                                                  | :enum:`return_value_policy::reference` but additionally applies a          |
 |                                                  | ``keep_alive<0, 1>`` *call policy* (described in the next section) that    |
 |                                                  | prevents the parent object from being garbage collected as long as the     |