Undo space removal

Author: wjandrea

pandas/_libs/tslibs/timedeltas.pyx

@@ -1739,7 +1739,7 @@ cdef class _Timedelta(timedelta):
         """
         Format the Timedelta as ISO 8601 Duration.
 
-        ``P[n]Y[n]M[n]DT[n]H[n]M[n]S``, where the ``[n]``s are replaced by the
+        ``P[n]Y[n]M[n]DT[n]H[n]M[n]S``, where the ``[n]`` s are replaced by the
         values. See Wikipedia:
         `ISO 8601 § Durations <https://en.wikipedia.org/wiki/ISO_8601#Durations>`_.