diff --git a/README.md b/README.md
index 30079ce..bb03e91 100644
--- a/README.md
+++ b/README.md
@@ -485,13 +485,13 @@ Last option
 © 2018-2021 D.A.A. All rights reserved; gonzho AT web.de; https://github.com/openhp/HeatPumpController/.<br>
 
 Text, media and other materials licensed under [CC-BY-SA License v4.0](https://creativecommons.org/licenses/by-sa/4.0/).<br>
-Attribution: You must clearly attribute Valden Heat Pump Controller (https://github.com/openhp/HeatPumpController/) original work in any derivative works.<br>
+<sub>Attribution: You must clearly attribute Valden Heat Pump Controller (https://github.com/openhp/HeatPumpController/) original work in any derivative works.<br>
 Share and Share Alike: If you make modifications or additions to the content you re-use, you must license them under the CC-BY-SA License v4.0 or later.<br>
 Indicate changes: If you make modifications or additions, you must indicate in a reasonable fashion that the original work has been modified.<br>
-You are free: to share and adapt the material for any purpose, even commercially, as long as you follow the license terms.<br>
+You are free: to share and adapt the material for any purpose, even commercially, as long as you follow the license terms.</sub><br>
 
 The firmware source code licensed under [GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html). <br>
-This product is distributed in the hope that it will be useful,	but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.<br>
+<sub>This product is distributed in the hope that it will be useful,	but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.<sub><br>
 
 For third-party libraries licenses used in this product please refer to those libraries.<br>
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