Update page-africa.html

fix typo error "overivew" to "overview"

Author: tawaliou

page-africa.html

@@ -33,7 +33,7 @@ <h1 class="h2">All In Africa</h1>
         <img class="mx-auto col-10" src="{{ '/assets/img/direction/student-on-computer-2.png' | relative_url }}" alt="student on computer" />
       </div>
       <div class="col-12 col-md-7 pr-md-6">
-        <h2 class="h3 mb-6" data-animate-in="up">Overivew</h2>
+        <h2 class="h3 mb-6" data-animate-in="up">Overview</h2>
         <p>All In Africa is designed to empower Africans and bridge the diversity gap of developers through free open source education, comprehensive training, mentorship, vibrant community engagement, and career focused experiential opportunities. Participants will enhance their technical skills with access to open source courses, practical training, and hackathons.</p>
 
         <p>The program offers a unique chance to connect with tech professionals and fellow students across Africa, fostering networking and collaboration. By joining this community, individuals can collaborate on impactful open source projects that address real-world challenges. </p>