Move HTML escaping example back to Variable Rules.
Move HTML escaping example back to Variable Rules.

Demonstration of markupsafe's escape function was in the Minimal
Application example, but the minimal example does not accept user
input.

mitsuhiko/flask,fkazimierczak/flask,drewja/flask,fkazimierczak/flask,pallets/flask,mitsuhiko/flask,drewja/flask,pallets/flask,pallets/flask,fkazimierczak/flask,drewja/flask