Fix typo in the homepage

index.html

@@ -33,7 +33,7 @@ title: POuL » Politecnico Open unix Labs
 
 <div class="home-course-text bg-black">
 	<div class="container text-align-center">
-		<h4>Periodically we offer courses about of computer science on several topics</h4>
+		<h4>Periodically we offer courses about  several topics on computer science </h4>
 
 		<div class="home-course-text-topics">
 			<a href="/courses/arduino/"><img src="{{ '/site/assets/img/courses_logos/arduino.svg' | static_url }}"
@@ -74,4 +74,4 @@ title: POuL » Politecnico Open unix Labs
 
 		<h3><a href="{{ '/coding_gym/' | relative_url }}">Learn more</a></h3>
 	</div>
-</div>
\ No newline at end of file
+</div>