Editorial: swap order of steps in String.p.includes (#3300)

spec.html

@@ -34605,8 +34605,8 @@ <h1>String.prototype.includes ( _searchString_ [ , _position_ ] )</h1>
           1. Let _len_ be the length of _S_.
           1. Let _start_ be the result of clamping _pos_ between 0 and _len_.
           1. Let _index_ be StringIndexOf(_S_, _searchStr_, _start_).
-          1. If _index_ is not ~not-found~, return *true*.
-          1. Return *false*.
+          1. If _index_ is ~not-found~, return *false*.
+          1. Return *true*.
         </emu-alg>
         <emu-note>
           <p>If _searchString_ appears as a <emu-not-ref>substring</emu-not-ref> of the result of converting this object to a String, at one or more indices that are greater than or equal to _position_, this function returns *true*; otherwise, it returns *false*. If _position_ is *undefined*, 0 is assumed, so as to search all of the String.</p>