[doc] uses link instead

docs/other.rst

@@ -314,8 +314,9 @@ expect the number of spaces to add or to remove as first argument.
 .. WARNING::
-   Since RedBaron calls `literal_eval` it can only parse the python code parsed
-   by the python version you are using.
+   Since RedBaron calls `ast.literal_eval
+   <https://docs.python.org/2/library/ast.html#ast.literal_eval>` it can only
+   parse the python code parsed by the python version you are using.
    For example if you are using a python version inferior to 3.6, `to_python`
    will crash on `100_000` because it is only supported since python 3.6