Merge "Upgrade markdown to 3.4.1" am: 79292f57ff

Original change: https://android-review.googlesource.com/c/platform/external/markdown/+/2288233

Change-Id: I8ea6c0089cbaf88b82ca545a6f2e2599b0432ecf
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>