sphinx: adopt kernel readthedoc theme

The default "alabaster" sphinx theme has a couple shortcomings:
- the navbar moves along the page
- the search bar is not always at the same place
- it lacks some contrast and colours

The "rtd" theme from readthedocs.org is a popular third party theme used
notably by the kernel, with a custom style sheet. I like it better,
perhaps others do too. It also simplifies the "Edit on Gitlab" links.

Tweak a bit the custom theme to match qemu.org style, use the
QEMU logo, and favicon etc.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20210323115328.4146052-1-marcandre.lureau@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>

1 files changed, 0 insertions, 5 deletions

diff --git a/docs/specs/_templates/editpage.html b/docs/specs/_templates/editpage.html
deleted file mode 100644
index aaa468aa98..0000000000
--- a/docs/specs/_templates/editpage.html
+++ /dev/null
@@ -1,5 +0,0 @@
-<div id="editpage">
-  <ul>
-    <li><a href="https://gitlab.com/qemu-project/qemu/-/blob/master/docs/specs/{{pagename}}.rst">Page source</a></li>
-  </ul>
-</div>