Dantarion's site is awesome, you just need to know some things to read it well :
-hitboxes are out on the next frame it's said they are out. Ex : Jab (attack11) is said to come out on frame 2, that means it comes out on frame 3. They still end on the frame it says they end (the "terminate collisions" line). Deal with it.
-smashes are counted from the moment you release the charge (so no, Fsmash isn't frame 7).
-invincibility frames begin at "Intangibility" and end at "Normal Body State"
There are other things like collision state=0x2 meaning a part of the hurtbox becomes invincible and other SA stuff, but unfortunately they don't concern Falcon.