minor #1272 Update index.rst (nieck)

This PR was merged into the 2.x branch.

Discussion
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Update index.rst

This is a small improvement of a code-example in the documentation.

Commits
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003353d Update index.rst

Author: weaverryan

src/Autocomplete/doc/index.rst

@@ -351,8 +351,8 @@ events that the core Stimulus controller dispatches:
 
         disconnect() {
             // You should always remove listeners when the controller is disconnected to avoid side-effects
-            this.element.removeEventListener('autocomplete:pre-connect', this._onConnect);
-            this.element.removeEventListener('autocomplete:connect', this._onPreConnect);
+            this.element.removeEventListener('autocomplete:connect', this._onConnect);
+            this.element.removeEventListener('autocomplete:pre-connect', this._onPreConnect);
         }
 
         _onPreConnect(event) {