Merge "simpleperf: Add an introduction slide deck." am: 620df15de7 am: 2eee8aa869 am: ea760b8280

Original change: https://android-review.googlesource.com/c/platform/system/extras/+/1843674

Change-Id: Iec6f4a3af0387f3548bef7f03184e3188c6f196f