Updade Ar info to be consistent with paper

docs/source/delivery/lhapdf.rst

@@ -43,7 +43,7 @@ to a prescription described below.
    * - :math:`(15, 31)`
      - `NNSFnu\_Ea\_lowQ <https://data.nnpdf.science/NNSFnu/NNSFnu_Ea_lowQ.tar.gz>`_
      - `NNSFnu\_Ea\_highQ <https://data.nnpdf.science/NNSFnu/NNSFnu_Ea_highQ.tar.gz>`_
-   * - :math:`(18, 40)`
+   * - :math:`(18, 39)`
      - `NNSFnu\_Ar\_lowQ <https://data.nnpdf.science/NNSFnu/NNSFnu_Ar_lowQ.tar.gz>`_
      - `NNSFnu\_Ar\_highQ <https://data.nnpdf.science/NNSFnu/NNSFnu_Ar_highQ.tar.gz>`_
    * - :math:`(20, 40)`
@@ -106,8 +106,7 @@ tutorial part it can be mainly used to generate structure function grids:
    nnu fit dump_grids nnsfnu/postfit -a ${A_VALUE} -o ${SET_NAME} [-q '{"min": 1e-3, "max": 500, "num": 100}]'
 
 
-.. note:: 
+.. note::
 
    If one encouters the issue that the git version does not match, one just
    needs to checkout to the commit from which the fit was generated.
-