linting_cleanup: license string standardized

Author: JesusTorrado

LICENCE.txt

@@ -13,24 +13,6 @@ The documentation of this program is released under the GNU Free
 Documentation License (see below)
 
 
-Exceptions:
------------
-- The copyright of the logos of the supporting institutions belong
-  to the institutions themselves
-
-
-Re-licensing of specific files:
--------------------------------
-
-The following files have been translated (some with large
-modification) and re-licensed from the more liberally licensed
-CosmoMC (https://github.com/cmbant/CosmoMC):
-
-- mcmc.py and proposal.py
-- sn.py, cmblikes.py in base_classes
-- most of the files under grid_tools/
-
-
 For this code and its documentation (with the exceptions above):
 ----------------------------------------------------------------
 

README.rst

@@ -104,3 +104,5 @@ Thanks too to `G. Cañas Herrera`_, `A. Finke`_, `X. Garrido`_, `S. Heimersheim`
    :target: https://stfc.ukri.org/
    :height: 150px
    :width: 150px
+
+(Copyright for the logos above belongs to their respective institutions.)

pyproject.toml

@@ -11,7 +11,7 @@ authors = [
 ]
 description = "Code for Bayesian Analysis"
 readme = "README.rst"
-license = "LicenseRef-LGPLv3-arxiv"
+license = "LGPL-3.0-or-later AND LicenseRef-GFDL-1.3-or-later"
 license-files = ["LICENCE.txt"]
 keywords = ["montecarlo", "sampling", "MCMC", "cosmology"]
 classifiers = [