getting-started: qemu: fix formatting
getting-started: qemu: fix formatting

Fix some formatting since the in-tree markdown parser differs in
behavior from that used to generate docs.automotivelinux.org

Signed-off-by: Matt Porter <c1d287ff3802a4aab0e3770389ea24a33314618b@konsulko.com>

automotive-grade-linux/docs-agl,automotive-grade-linux/docs-agl,automotive-grade-linux/docs-agl,claneys/docs-agl,automotive-grade-linux/docs-agl,claneys/docs-agl,leon-anavi/docs-agl,leon-anavi/docs-agl,claneys/docs-agl,claneys/docs-agl,leon-anavi/docs-agl,leon-anavi/docs-agl