Corrected URL.

README.md

@@ -28,7 +28,7 @@ The code is in the Matlab programming language.
 The following additional software is necessary to run the code in this project:
 - [ ] a recent version of Matlab
 - [ ] the BIEPack Matlab library for solving boundary integral equations
-  available from https://git.scc.kit.edu/ge8413/bempp-experiments and all
+  available from https://git.scc.kit.edu/ianmip-software/biepack and all
   dependent software to activate the evaluation of periodic Green's
   functions
 - [ ] the export_fig Matlab package, available from https://github.com/altmany/export_fig