Drop "flake = false" and suggest flakehub

Author: edolstra

README.md

@@ -5,10 +5,7 @@
 To use, add the following to your `flake.nix`:
 
 ```nix
-inputs.flake-compat = {
-  url = "github:edolstra/flake-compat";
-  flake = false;
-};
+inputs.flake-compat.url = "https://flakehub.com/f/edolstra/flake-compat/1.tar.gz";
 ```
 
 Afterwards, create a `default.nix` file containing the following:
@@ -18,7 +15,7 @@ Afterwards, create a `default.nix` file containing the following:
   (
     let lock = builtins.fromJSON (builtins.readFile ./flake.lock); in
     fetchTarball {
-      url = "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
+      url = lock.nodes.flake-compat.locked.url or "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
       sha256 = lock.nodes.flake-compat.locked.narHash;
     }
   )