diff --git a/doc/supply_demand.rst b/doc/supply_demand.rst
index 2a4d6fee..888c066f 100644
--- a/doc/supply_demand.rst
+++ b/doc/supply_demand.rst
@@ -164,10 +164,10 @@ Activated in Config from the `tes <https://github.com/PyPSA/pypsa-eur-sec/blob/3
 Thermal energy can be stored in large water pits associated with district heating systems and individual thermal energy storage (TES), i.e., small water tanks. Water tanks are modelled as `stores <https://pypsa.readthedocs.io/en/latest/components.html?highlight=distribution#store,  which are connected to heat demand buses through water charger/discharger links>`_.
 A thermal energy density of 46.8 kWhth/m3 is assumed, corresponding to a temperature difference of 40 K. The decay of thermal energy in the stores: 1-exp(-1/24τ) is assumed to have a time constant  of  t=180 days for central TES and  t=3 days for individual TES, both modifiable through `tes_tau <https://github.com/PyPSA/pypsa-eur-sec/blob/3daff49c9999ba7ca7534df4e587e1d516044fc3/config.default.yaml#L229>`_ in Config file. Charging and discharging efficiencies are 90% due to pipe losses.
 
-*Retrofitting of the thermal envelope of buildings*
+**Retrofitting of the thermal envelope of buildings**
 
 Co-optimising building renovation is only enabled if in the `config <https://github.com/PyPSA/pypsa-eur-sec/blob/3daff49c9999ba7ca7534df4e587e1d516044fc3/config.default.yaml#L222>`_ file. To reduce the computational burden,
-default setting is set as false
+default setting is set as false.
 
 Renovation of the thermal envelope reduces the space heating demand and is
 optimised at each node for every heat bus. Renovation measures through additional