Fix straight recipe (#36)

CeleritasCelery · web-flow · commit 30f0d393057e · 2024-08-17T22:38:17.000-05:00
The recipe is already part of Melpa, so it does not need to be added explicitly.
diff --git a/README.md b/README.md
@@ -162,9 +162,7 @@ installing
 ### straight
 
 ```emacs-lisp
-(straight-use-package '(rustic
-                        :repo "emacs-rustic/rustic"
-                        :fetcher github))
+(straight-use-package 'rustic)
 ```
 
 ## remote
