Fixed description post 🚀

chicio · chicio · commit 99246a790058 · 2019-05-10T21:09:34.000+02:00
diff --git a/_posts/2019-05-08-intersection-observer.md b/_posts/2019-05-08-intersection-observer.md
@@ -11,7 +11,7 @@ seo:
 authors: [fabrizio_duroni]
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-*Intersection Observer can improve your web applications performance and by helping you to implement lazy loading of images.*
+*Intersection Observer can improve your web applications performance by helping you to implement lazy loading of images.*
 
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