add html for perfing skottie-wasm

Change-Id: I7ce4d869565d57756b17587fcb612ccbfdbea9e2
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/220747
Reviewed-by: Ravi Mistry <rmistry@google.com>
Reviewed-by: Joe Gregorio <jcgregorio@google.com>
4 files changed