Chaged the Text Search docs on language

[Alfro]

Q	A
Type	improvement?
BC Break	no?
Fixed issues

Summary

When trying to do

        ->language('it')
        ->text('parole che stai cercando');

I get:
This method requires a $text operator (call text() first)

I assumed the docs was wrong. If I am somehow not understanding this, please feel free to close the PR.

[SenseException]

I'd say you're correct. This is also mentioned in the method description:

mongodb-odm/lib/Doctrine/ODM/MongoDB/Query/Builder.php

Lines 842 to 850 in 6ded070

	/**
	* Set the $language option for $text criteria.
	*
	* This method must be called after text().
	*
	* @see Expr::language()
	* @see http://docs.mongodb.org/manual/reference/operator/text/
	*/
	public function language(string $language) : self

[alcaeus]

Rebased to fix this in 1.3.x. Thanks @Alfro!