readme example: get owner,repo from flake.lock #38

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Artturin wants to merge 1 commit from Artturin/betterreadme into master

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@ -14,16 +14,15 @@ inputs.flake-compat = {
Afterwards, create a `default.nix` file containing the following:
```nix
(import
(
let lock = builtins.fromJSON (builtins.readFile ./flake.lock); in
fetchTarball {
url = "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
sha256 = lock.nodes.flake-compat.locked.narHash;
}
)
{ src = ./.; }
).defaultNix
(import (let
lock = builtins.fromJSON (builtins.readFile ./flake.lock);
owner = lock.nodes.flake-compat.locked.owner;
repo = lock.nodes.flake-compat.locked.repo;
rev = lock.nodes.flake-compat.locked.rev;
in fetchTarball {
url = "https://github.com/${owner}/${repo}/archive/${rev}.tar.gz";
sha256 = lock.nodes.flake-compat.locked.narHash;
}) { src = ./.; }).defaultNix
```
If you would like a `shell.nix` file, create one containing the above, replacing `defaultNix` with `shellNix`.