add crouch and shift to the skript docs

[ScienceKit]

Suggestion

add crouch and shift into the searchable terms for sneak because people get confused

Why?

for a while, I and a few other developers did not think there was a sneak event as crouch and shift are more common.

Other

you could add the on shift and on unshift events...

Agreement

• I have read the guidelines above and affirm I am following them with this suggestion.

[AyhamAl-Ali]

Good suggestion. Transferring to Skript-Docs repo.
Can be easily done using Keywords method