fixed typo (#156)

Author: kazu69

docs/Test.md

@@ -61,7 +61,7 @@ $user->getName(); // => 'davert'
 $user->getEmail();// => 'davert@mail.ua'
 
 # create an instance of mocked class
-test::double('User')->construct(['name' => 'davert']); // via constructir
+test::double('User')->construct(['name' => 'davert']); // via constructor
 test::double('User')->make(); // without calling constructor
 
 # stub for magic method

src/AspectMock/Test.php

@@ -68,7 +68,7 @@ class Test {
      * $user->getEmail(); => 'davert@mail.ua'
      *
      * # create an instance of mocked class
-     * test::double('User')->construct(['name' => 'davert']); // via constructir
+     * test::double('User')->construct(['name' => 'davert']); // via constructor
      * test::double('User')->make(); // without calling constructor
      *
      * # stub for magic method