fix(docs): Fix SSR acronym typo in README

README.md

@@ -17,7 +17,7 @@ This method of storing session data is the same technique used by **frameworks l
 
 **♻️ Password rotation is supported**. It allows you to change the password used to sign and encrypt sessions while still being able to decrypt sessions that were created with a previous password.
 
-**Next.js's** 🗿 [Static generation](https://nextjs.org/docs/basic-features/pages#static-generation-recommended) (SG) and ⚙️ [Server-side Rendering](https://nextjs.org/docs/basic-features/pages#server-side-rendering) (SSG) are both supported.
+**Next.js's** 🗿 [Static generation](https://nextjs.org/docs/basic-features/pages#static-generation-recommended) (SG) and ⚙️ [Server-side Rendering](https://nextjs.org/docs/basic-features/pages#server-side-rendering) (SSR) are both supported.
 
 **There's a Connect middleware available** so you can use this library in any Connect compatible framework like Express.