chore: Comply to Vercel Open Source sponsorship [skip release] (#1087)

* added banner

* Changed banner image allignment

* changed location of banner again

* added to acknowledgement

* added to acknowledgement 1

* changed image size

* k

* l

* s

* s

* .

* added link to the banner in readme.md

* fixed image redirect

* fixed image allignment

* made changes in readme and index.js

* Changed the source of the banner image

* added banner to the footer of the site

README.md

@@ -140,11 +140,19 @@ export default function Component() {
 <a href="https://github.com/nextauthjs/next-auth/graphs/contributors">
   <img width="500px" src="https://contrib.rocks/image?repo=nextauthjs/next-auth" />
 </a>
+<div>
+<a href="https://vercel.com?utm_source=next-auth&utm_campaign=oss">
+<img width="170px" src="https://raw.githubusercontent.com/nextauthjs/next-auth/canary/www/static/img/powered-by-vercel.svg" alt="Powered By Vercel" />
+</a>
+</div>
+<div>
+<p align="left">Thanks to Vercel sponsoring this project by allowing it to be deployed for free for the entire NextAuth.js Team</p>
+</div>
 
 ## Contributing
 
 We're open to all community contributions! If you'd like to contribute in any way, please first read our [Contributing Guide](https://github.com/nextauthjs/next-auth/blob/canary/CONTRIBUTING.md).
 
 ## License
 
-ISC
+ISC

www/docusaurus.config.js

@@ -96,7 +96,17 @@ module.exports = {
             {
               label: 'Images by unDraw',
               to: 'https://undraw.co/'
-            }
+            },
+            {html: `
+            <a target="_blank" rel="noopener noreferrer" href="https://vercel.com?utm_source=next-auth&utm_campaign=oss">
+              <img
+                alt="Powered by Vercel"
+                style="margin-top: 8px"
+                height="32"
+                src="https://raw.githubusercontent.com/nextauthjs/next-auth/canary/www/static/img/powered-by-vercel.svg"
+              />
+            </a>`
+           }
           ]
         }
       ],

www/src/pages/index.js

@@ -183,7 +183,6 @@ function Home () {
           </section>
           <div className='home-subtitle'>
             <p>NextAuth.js is an open source community project.</p>
-            <p>NextAuth.js is not affiliated with Vercel or Next.js</p>
           </div>
         </main>
       </div>