Merge pull request #976 from minrk/check-links

fix a couple of doc links

Author: minrk

docs/source/changelog.md

@@ -83,7 +83,7 @@ Highlights:
 #### Contributors to this release
 
 The following people contributed discussions, new ideas, code and documentation contributions, and review.
-See [our definition of contributors](https://github-activity.readthedocs.io/en/latest/#how-does-this-tool-define-contributions-in-the-reports).
+See [our definition of contributors](https://github-activity.readthedocs.io/en/latest/use/#how-does-this-tool-define-contributions-in-the-reports).
 
 ([GitHub contributors page for this release](https://github.com/ipython/ipyparallel/graphs/contributors?from=2023-04-14&to=2024-03-04&type=c))
 

docs/source/reference/security.md

@@ -379,7 +379,7 @@ and and/or SSH tunneled TCP/IP channels,
 address the core potential vulnerabilities in the system,
 while still enabling user's to use the system in open networks.
 
-[openssh]: https://www.openssh.com
+[openssh]: https://www.openssh.org
 [paramiko]: https://www.lag.net/paramiko
 [hmac]: https://datatracker.ietf.org/doc/html/rfc2104
 [curvezmq]: https://rfc.zeromq.org/spec/26/