adjust tick positions (centering)

Author: RDaxini

docs/sphinx/source/user_guide/modeling_topics/spectrum.rst

@@ -49,22 +49,22 @@ validated for a range of commercial modules.
 +                                                     +                             +---------+---------+------+------+------+------------+           +
 |                                                     |                             | mono-Si | poly-Si | CdTe | CIGS | a-Si | perovskite |           |
 +=====================================================+=============================+=========+=========+======+======+======+============+===========+
-| :py:func:`Caballero <spectral_factor_caballero>`    | :term:`airmass_absolute`,   | ✓       | ✓       | ✓    | ✓    | ✓    | ✓          |           |
+| :py:func:`Caballero <spectral_factor_caballero>`    | :term:`airmass_absolute`,   |         |         |      |      |      |            |           |
 |                                                     +-----------------------------+         |         |      |      |      |            |           |
-|                                                     |:term:`precipitable_water`,  |         |         |      |      |      |            |   [2]_    |
+|                                                     |:term:`precipitable_water`,  |   ✓     |    ✓    |  ✓   |   ✓  |  ✓   |     ✓      |   [2]_    |
 |                                                     +-----------------------------+         |         |      |      |      |            |           |
 |                                                     | :term:`aod`                 |         |         |      |      |      |            |           |
 +-----------------------------------------------------+-----------------------------+---------+---------+------+------+------+------------+-----------+
-| :py:func:`First Solar <spectral_factor_firstsolar>` | :term:`airmass_absolute`,   |         | ✓       | ✓    |      |      |            |           |
-|                                                     +-----------------------------+         |         |      |      |      |            |   [3]_    |
+| :py:func:`First Solar <spectral_factor_firstsolar>` | :term:`airmass_absolute`,   |         |         |      |      |      |            |           |
+|                                                     +-----------------------------+         |    ✓    |  ✓   |      |      |            |   [3]_    |
 |                                                     | :term:`precipitable_water`  |         |         |      |      |      |            |           |
 +-----------------------------------------------------+-----------------------------+---------+---------+------+------+------+------------+-----------+
-| :py:func:`JRC <spectral_factor_jrc>`                | :term:`airmass_relative`,   |         | ✓       | ✓    |      |      |            |           |
-|                                                     +-----------------------------+         |         |      |      |      |            +   [4]_    |
+| :py:func:`JRC <spectral_factor_jrc>`                | :term:`airmass_relative`,   |         |         |      |      |      |            |           |
+|                                                     +-----------------------------+         |    ✓    |  ✓   |      |      |            +   [4]_    |
 |                                                     | :term:`clearsky_index`      |         |         |      |      |      |            |           |
 +-----------------------------------------------------+-----------------------------+---------+---------+------+------+------+------------+-----------+
-| :py:func:`PVSPEC <spectral_factor_pvspec>`          | :term:`airmass_absolute`,   | ✓       | ✓       | ✓    | ✓    | ✓    |            |           |
-|                                                     +-----------------------------+         |         |      |      |      |            |   [5]_    |
+| :py:func:`PVSPEC <spectral_factor_pvspec>`          | :term:`airmass_absolute`,   |         |         |      |      |      |            |           |
+|                                                     +-----------------------------+   ✓     |    ✓    |  ✓   |  ✓   |  ✓   |            |   [5]_    |
 |                                                     | :term:`clearsky_index`      |         |         |      |      |      |            |           |
 +-----------------------------------------------------+-----------------------------+---------+---------+------+------+------+------------+-----------+
 | :py:func:`SAPM <spectral_factor_sapm>`              | :term:`airmass_absolute`    |         |         |      |      |      |            |   [6]_    |