Fixup the description to mention Nix.

grahamc · web-flow · commit 5c1d6061ef88 · 2023-08-22T15:54:04.000-04:00
diff --git a/action.yaml b/action.yaml
@@ -2,7 +2,7 @@ name: FlakeHub Push
 branding:
   icon: "box"
   color: "purple"
-description: "Publish your flake to FlakeHub."
+description: "Publish your Nix flake to FlakeHub."
 
 inputs:
   visibility:
