Update templates.rst

[cezar77]

There was a typo:

<form saction="."

corrected to:

<form action="."

[coveralls]

Coverage remained the same at 79.319% when pulling 848982438218591572cd1e351185993cca67db5a on cezar77:patch-1 into 7c16d47e0fcb52a551c741a78f487b18291d8e87 on asifpy:master.