separate C param

Author: RDaxini

pvlib/pvsystem.py

@@ -2241,7 +2241,7 @@ def sapm(effective_irradiance, temp_cell, module, *, temperature_ref=25,
     of SAPM parameters is presented in the table below. Those that are required
     in the ``module`` parameter to run this model are as follows:
 
-    * ``C0–C3``
+    * ``C0``, ``C1``, ``C2``, ``C3``
     * ``Isco``
     * ``Impo``
     * ``Voco``