fix: readme link

Author: RobPasMue

README.rst

@@ -6,4 +6,4 @@ Changes relative to pythonnet:
 
 * Revert of `#1240 <https://github.com/pythonnet/pythonnet/pull/1240>`_.
 * Enum REPR `#2239 <https://github.com/pythonnet/pythonnet/pull/2239>`_ is included in this release of version 3.0.2, but is unreleased in pythonnet
-* Opt-into explicit interface wrapping, `#19 <https://github.com/ansys/ansys-pythonnet/pull/19>`. This opts into the behavior that became the default in #1240 if ToPythonAs<T> is explicitly used
+* Opt-into explicit interface wrapping, `#19 <https://github.com/ansys/ansys-pythonnet/pull/19>`_. This opts into the behavior that became the default in #1240 if ToPythonAs<T> is explicitly used