update whatsnew and glossary page

Author: RDaxini

docs/sphinx/source/user_guide/nomenclature.rst

@@ -142,6 +142,12 @@ There is a convention on consistent variable names throughout the library:
     solar_zenith
         Zenith angle of the sun in degrees
 
+    spectra, spectra_components
+        Spectral irradiance (components) [Wm⁻²nm⁻¹]. The amount of energy
+        incident on a horizontal unit area per unit time and per unit
+        wavelength. As with broadband irradiance, global spectral irradiance
+        is composed of direct amd diffuse components.
+    
     surface_azimuth
         Azimuth angle of the surface
 

docs/sphinx/source/whatsnew/v0.11.2.rst

@@ -26,7 +26,7 @@ Documentation
 * Edited docstrings for :py:func:`~pvlib.pvsystem.dc_ohms_from_percent` and
   :py:func:`~pvlib.pvsystem.dc_ohmic_losses` for clarity. (:issue:`1601`, :pull:`2229`)
 * Added variables `spectra` and `spectra_components` to the
-  :ref:`variables_style_rules` page. (:issue:`2150`, :pull:`2264`)
+  :ref:`nomenclature` page. (:issue:`2150`, :pull:`2264`)
 * Added a new citation style guide (:ref:`references`) to the contributing
   page. (:issue:`2202`, :pull:`2226`)
 * Updated :py:func:`~pvlib.irradiance.reindl` to include definitions of terms