Fix prop definition of externalProjects

src/components/GitProfile.jsx

@@ -279,7 +279,7 @@ GitProfile.propTypes = {
       PropTypes.shape({
         title: PropTypes.string.isRequired,
         description: PropTypes.string.isRequired,
-        link: PropTypes.string,
+        link: PropTypes.string.isRequired,
         imageUrl: PropTypes.string,
       })
     ),

types/index.d.ts

@@ -222,10 +222,10 @@ export interface Certifications {
 }
 
 export interface ExternalProjects {
-  title?: string;
-  description?: string;
+  title: string;
+  description: string;
   imageUrl?: string;
-  link?: string;
+  link: string;
 }
 
 export interface Education {