Update README.md

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README.md

@@ -544,7 +544,7 @@ These behave exactly like VueJs's transition directives, except they have differ
 
 > Note: The $event property is only available in the DOM.
 
-If you need to access $event inside of a Javascript function you can pass it in directly:
+If you need to access $event inside of a JavaScript function you can pass it in directly:
 
 `<button x-on:click="myFunction($event)"></button>`