fix broken link in readme

Author: sebhmg

README.rst

@@ -164,7 +164,7 @@ The use of Third Party Software is governed by the terms of such software licens
 Third Party Software notices and/or additional terms and conditions are located in the
 `THIRD_PARTY_SOFTWARE.rst`_ file.
 
-.. _THIRD_PARTY_SOFTWARE.rst: .docs/THIRD_PARTY_SOFTWARE.rst
+.. _THIRD_PARTY_SOFTWARE.rst: docs/THIRD_PARTY_SOFTWARE.rst
 
 Copyright
 ^^^^^^^^^