Update CoC link

The file was moved when we started publishing the documents with GitLab
Pages[1][2] to https://terms.archlinux.org.

[1] service-agreements!16
[2] infrastructure@d7d4ecbc

README.rst

@@ -180,7 +180,7 @@ Here are some guidelines:
   to the RFC process.
 - **Civility and respect:** Like all other discussions that happen in the Arch
   Linux community, RFC discussions are governed by our `Code of Conduct
-  <https://gitlab.archlinux.org/archlinux/service-agreements/-/blob/master/code-of-conduct.md>`_.
+  <https://terms.archlinux.org/docs/code-of-conduct/>`_.
   Creating an RFC is a laborious project. Commenting on an RFC should be done
   with respect and empathy for the hard work that the author has put into it.
 - **Avoid scope creep:** You should make suggestions on how the RFC can be