updated version in readme

README.MD

@@ -58,7 +58,7 @@ Add this repository to the [`plugins` list of your configurations](https://rycee
           owner = "chisui";
           repo = "zsh-nix-shell";
           rev = "v0.2.0";
-          sha256 = "0snhch9hfy83d4amkyxx33izvkhbwmindy0zjjk28hih1a9l2jmx";
+          sha256 = "1gfyrgn23zpwv1vj37gf28hf5z0ka0w5qm6286a7qixwv7ijnrx9";
         };
       }
     ];