adding license and readme

LICENSE.md

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+ # License 
+
+**PARTIES** GESIS – Leibniz Institute for the Social Sciences, University of Kaiserslautern-Landau (RPTU), University of Bern, end users 
+
+**COPYRIGHT FOR** WebTrack 
+
+**YEAR** 2024 
+
+**COPYRIGHT HOLDERS** University of Kaiserslautern-Landau (RPTU) and University of Bern 
+
+*RIGHTS* Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction the rights to use, copy, modify, merge, publish, distribute, sublicense, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: 
+
+- The software shall only be used for non-commercial academic purposes. 
+- Users of the software are required to cite: Adam, S., Makhortykh, M., Maier, M., Aigenseer, V., Urman, A., Gil-Lopez, T., Christner, C., de Leon, E. & Ulloa, R. (2024). Improving the quality of individual-level online information tracking: challenges of existing approaches and introduction of a new content- and long-tail sensitive academic solution. ArXiv. https://doi.org/10.48550/arXiv.2403.02931 
+- Users of the software are required to make their frontend and backend code integrating or otherwise using WebTrack code available as open source. 
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. 
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS OR GESIS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 
+
+**CHOICE OF LAW** German 
+
+**PLACE OF JURISDICTION** Mannheim, Germany 

README.md

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+
+# WebTrack
+
+WebTrack is a web browser plugin that captures the web browsing behavior of users who volunteer to participate in web tracking studies. WebTrack was developed within the project “Reciprocal relations between populist radical-right attitudes and information behavior: a longitudinal study of attitude development in high-choice information environments” lead by Silke Adam (U of Bern) and Michaela Maier (U of Koblenz-Landau) and funded by the Swiss National Science Foundation (100001CL 182630/1) and the German Research Foundation DFG (MA2244/9-1). The software was transferred to GESIS in 2021 where WebTrack was maintained and further developed. For academic use of the tool, please consider the below license.  
+
+This repository webtrack_server_interface_public contains the code for the frontend interface of the WebTrack server. The repository webtrack_server_public contains the code for the backend of the WebTrack server. The repository webtrack_extension_public (link) contains the code for the frontend of the browser extension.  
+
+The Chrome Browser API will be updated from V2 to V3 in June 2024. The tool is tailored towards V2 and will not be maintained anymore for version V3.
+
+ # License 
+
+**PARTIES** GESIS – Leibniz Institute for the Social Sciences, University of Kaiserslautern-Landau (RPTU), University of Bern, end users 
+
+**COPYRIGHT FOR** WebTrack 
+
+**YEAR** 2024 
+
+**COPYRIGHT HOLDERS** University of Kaiserslautern-Landau (RPTU) and University of Bern 
+
+*RIGHTS* Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction the rights to use, copy, modify, merge, publish, distribute, sublicense, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: 
+
+- The software shall only be used for non-commercial academic purposes. 
+- Users of the software are required to cite: Adam, S., Makhortykh, M., Maier, M., Aigenseer, V., Urman, A., Gil-Lopez, T., Christner, C., de Leon, E. & Ulloa, R. (2024). Improving the quality of individual-level online information tracking: challenges of existing approaches and introduction of a new content- and long-tail sensitive academic solution. ArXiv. https://doi.org/10.48550/arXiv.2403.02931 
+- Users of the software are required to make their frontend and backend code integrating or otherwise using WebTrack code available as open source. 
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. 
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS OR GESIS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 
+
+**CHOICE OF LAW** German 
+
+**PLACE OF JURISDICTION** Mannheim, Germany 
+