Remove warnings in docs

docs/examples/bifacial/plot_irradiance_nonuniformity_loss.py

@@ -53,8 +53,8 @@
 # Let's set a fixed irradiance to each cell row of the PV array with the values
 # described in Figure 1 (A), [1]_. We will cover this case for educational
 # purposes, although it can be achieved with the packages
-# :ref:`solarfactors <https://github.com/pvlib/solarfactors/>` and
-# :ref:`bifacial_radiance <https://github.com/NREL/bifacial_radiance>`.
+# `solarfactors <https://github.com/pvlib/solarfactors/>`_ and
+# `bifacial_radiance <https://github.com/NREL/bifacial_radiance>`_.
 #
 # Here we set and plot the global irradiance level of each cell.
 

docs/examples/floating-pv/plot_floating_pv_cell_temperature.py

@@ -19,7 +19,6 @@
 The PVSyst model for cell temperature :math:`T_{C}` is given by:
 
 .. math::
-    :label: pvsyst
 
     T_{C} = T_{a} + \frac{\alpha \cdot E \cdot (1 - \eta_{m})}{U_{c} + U_{v} \cdot WS},