typo and indent fix

Author: mungojam

_posts/plotly_js/fundamentals/uirevision/2019-01-04-uirevision-persist.html

@@ -40,7 +40,7 @@
 var interval = setInterval(function() {
 	data = data.map(new_data);
 
-	// user interation will mutate layout and set autorange to false
+	// user interaction will mutate layout and set autorange to false
 	// so we need to reset it to true
 	layout.xaxis.autorange = true;
 	layout.yaxis.autorange = true;
@@ -49,5 +49,5 @@
 	// layout.uirevision = rand();
 
 	Plotly.react('myDiv', data, layout);
-  if(cnt === 100) clearInterval(interval);
-}, 2500);
+	if(cnt === 100) clearInterval(interval);
+}, 2500);