Resolve "fix: add title on features"

Closes #36 (closed)

src/components/HomepageFeatures.js

@@ -62,8 +62,9 @@ function Feature({Svg, title, description}) {
 
 export default function HomepageFeatures() {
   return (
-    <section className="sections">
-      <div id="features">
+    <section className="sections" id="features">      
+      <h2 className={clsx("text--center text--uppercase", styles.title)}>Fonctionnalités</h2>
+      <div>
         {FeatureList.map((props, idx) => (
           <Feature key={idx} {...props} />
         ))}