Change laravel version in doc

[IfnotFr]

Since there is more than two 5.x version (5.0 and 5.1), it is more generic to say Since 5.0 :)

[arrilot]

thanks

[arrilot]

In fact, it was right, because 5.1.3 introduces html expressions and you can use {{ }} once again
I'll just delete this line entirely because those versions are outdated atm

[IfnotFr]

Ho, i understand :)

That's a good point