Merge pull request numpy#13485 from rgommers/security-doc

DOC: add security vulnerability reporting and doc links to README

README.md

@@ -11,11 +11,13 @@
 
 NumPy is the fundamental package needed for scientific computing with Python.
 
-- **Website (including documentation):** https://www.numpy.org
+- **Website:** https://www.numpy.org
+- **Documentation:** http://docs.scipy.org/
 - **Mailing list:** https://mail.python.org/mailman/listinfo/numpy-discussion
-- **Source:** https://github.com/numpy/numpy
-- **Bug reports:** https://github.com/numpy/numpy/issues
+- **Source code:** https://github.com/numpy/numpy
 - **Contributing:** https://www.numpy.org/devdocs/dev/index.html
+- **Bug reports:** https://github.com/numpy/numpy/issues
+- **Report a security vulnerability:** https://tidelift.com/docs/security
 
 It provides: