Adds an execution context explanation and a small advise on how to use it.
Adds an execution context explanation and a small advise on how to use it.

beeva-juanmanuelperez/beeva-best-practices,beeva-antonioiglesias/beeva-best-practices,beeva-juanmanuelperez/beeva-best-practices,beeva-antonioiglesias/beeva-best-practices