Add Portfolio to the path of fetch action

js/dropDown.js

@@ -8,7 +8,7 @@ const togglers = [languagesToggler, frameworksToggler, skillsToggler];
 const containers = [languagesContainer, frameworksContainer, skillsContainer];
 
 const data = async () => {
-  const res = await fetch('/data.json');
+  const res = await fetch('/Portfolio/data.json');
   const json = await res.json();
   return json;
 };