Fixed #138 + Minor update to ReadMe

- Added `required` attribute to input field which now won't allow users to search with empty input and thus, won't reroute to 404 page.

- Generalized Readme.md, it mentioned Hacktoberfest **2022** but the site is dynamic and works well in long-term, so I removed "**2022**".

Author: prithvi2k2

README.md

@@ -1,6 +1,6 @@
 # Hacktoberfest Projects 🎉
 
-A Web app which lets you find eligible repositories for Hacktoberfest 2022!
+A Web app which lets you find eligible repositories for Hacktoberfest!
 
 <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
 [![All Contributors](https://img.shields.io/badge/all_contributors-31-orange.svg?style=flat-square)](#contributors-)

components/Hero.tsx

@@ -65,6 +65,7 @@ function Hero() {
                 placeholder="Search for your language"
                 className="input input-bordered w-full text-neutral-100 border-2023-bavarian-gold-2 focus:outline-2023-bavarian-gold-2 max-w-xs rounded-tr-none rounded-br-none bg-transparent"
                 name="search"
+                required
               />
               <button
                 type="submit"