index.md: Fix docs format

Signed-off-by: Xinyu Zhang <xinyu.zhang@arm.com>
Change-Id: I56f75af74e1abbda9ae0a0bb92cd09048d4667a3
1 file changed
tree: e0b3a2e0d2051a1f49d895f0b39909e21fd97935
  1. docs/
  2. .gitreview
  3. mkdocs.yml
  4. requirements.txt