Update README.md (#804)

Summary: Pull Request resolved: #804

Reviewed By: QuentinDuval

Differential Revision: D44301229

Pulled By: mannatsingh

fbshipit-source-id: 72f03c97fa47a271fe4494edd47e596360fbc311

Author: mannatsingh

README.md

@@ -8,7 +8,7 @@
  </a>
 </p>
 
-## Classy Vision is not longer actively maintained.
+## Classy Vision is no longer actively maintained.
 
 The latest stable version is 0.7.0 and is available on pip, and has been tested to work with Pytorch 2.0.