update links to the SubmitAPatch wiki page

The page is now part of the documentation, but it also has a redirect
in the qemu.org web server to provide a stable URL.  Use it instead
of linking out to wiki.qemu.org.

Signed-off-by: Paolo Bonzini <[email protected]>
Reviewed-by: Daniel P. Berrangé <[email protected]>
Reviewed-by: Thomas Huth <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>

Author: bonzini

CONTRIBUTING.md

@@ -12,7 +12,7 @@ You should also CC the website maintainers:
 
 For further guidance on sending patches consult:
 
-https://wiki.qemu.org/Contribute/SubmitAPatch
+https://qemu.org/contribute/submit-a-patch/
 
 It is expected that contributors check the rendered website before submitting
 patches. This is possible by either running jekyll locally, or by using the

contribute.md

@@ -17,6 +17,6 @@ permalink: /contribute/
   “[Contributor FAQ](https://wiki.qemu.org/Contribute/FAQ)”,
   “[Improve the website](https://www.qemu.org/2017/02/04/the-new-qemu-website-is-up/)”
 
-Please do not submit merge requests on GitLab; patches are sent to the mailing list according to QEMU's [patch submissions guidelines](https://wiki.qemu.org/Contribute/SubmitAPatch).
+Please do not submit merge requests on GitLab; patches are sent to the mailing list according to QEMU's [patch submissions guidelines](/submit-a-patch/).
 
 Contributing to QEMU is subject to the [QEMU Code of Conduct](https://qemu.org/docs/master/devel/code-of-conduct.html).

contribute/report-a-bug.md

@@ -18,7 +18,7 @@ When submitting a bug report, please try to do the following:
 
 * Include information about the host and guest (operating system, version, 32/64-bit).
 
-QEMU does not use GitLab merge requests; patches are sent to the mailing list according to QEMU's [patch submissions guidelines](https://wiki.qemu.org/Contribute/SubmitAPatch).
+QEMU does not use GitLab merge requests; patches are sent to the mailing list according to QEMU's [patch submissions guidelines](../submit-a-patch).
 
 Do NOT report security issues (or other bugs, too) as "confidential" bugs in the
 bug tracker.  QEMU has a [security process](../security-process) for issues