Update filepaths in license

Author: liamjberrisford

individual_modules/intro_to_GPUs/LICENSE.txt

@@ -4,7 +4,7 @@
 The instructional material in this course is copyright © 2025 University of Exeter
 and is made available under the Creative Commons Attribution 4.0 International
 licence (https://creativecommons.org/licenses/by/4.0/). Instructional material
-consists of material that is contained within the "individual_modules/python_for_data_analysis" directory, and images folders in
+consists of material that is contained within the "individual_modules/intro_to_GPUs" directory, and images folders in
 this directory, with the exception of code snippets and example programs found
 in files within these folders. Such code snippets and example programs are
 considered software for the purposes of this licence. 

individual_modules/introduction_to_julia/LICENSE.txt

@@ -4,7 +4,7 @@
 The instructional material in this course is copyright © 2025 University of Exeter
 and is made available under the Creative Commons Attribution 4.0 International
 licence (https://creativecommons.org/licenses/by/4.0/). Instructional material
-consists of material that is contained within the "individual_modules/python_for_data_analysis" directory, and images folders in
+consists of material that is contained within the "individual_modules/introduction_to_julia" directory, and images folders in
 this directory, with the exception of code snippets and example programs found
 in files within these folders. Such code snippets and example programs are
 considered software for the purposes of this licence.