Correct the description of the radio module. It stated erroneously that it...

Correct the description of the radio module. It stated erroneously that it handled thermal emission whereas this is done by the nebular module.

pcigale/sed_modules/radio.py

@@ -9,11 +9,8 @@
 Radio module
 =============================
 
-This module implements the radio emission of galaxies, taking into account only
- the non-thermal emission. The thermal emission is handled by the nebular
- module. The parameters that this module takes as input are:
-- the value of the coefficient of the FIR/radio correlation
-- the value of the spectral index of the power law emission from synchrotron.
+This module implements the synchrotron emission of galaxies assuming the
+FIR/radio correlation and the power law of the synchrotron spectrum.
 
 """
 
@@ -28,9 +25,7 @@ from . import SedModule
 class Radio(SedModule):
     """Radio emission
 
-    Given the number of Lyman photons, the module computes the free-free
-    (thermal) emission of galaxies. Based on the SN collapse rate, the module
-    computes the synchrotron (non-thermal) emission of galaxies.
+    This module computes the synchrotron (non-thermal) emission of galaxies.
 
     """