add README.md

README.md

+# majoran-nanowire-conductance
+
+Code mostly taken from :page_with_curl: [Topology in Condensed Matter course](topocondmat.org)
+
+Run the notebooks on this repository with [![Binder](http://mybinder.org/badge.svg)](http://mybinder.org:/repo/basnijholt/majorana-nanowire-conductance).