docs: fix indentation error

.github/README.md

@@ -108,7 +108,7 @@ Alternatively, to install this from any NixOS live ISO, run `nix run --experimen
 - Below is a small list of tips that should be helpful if you are new to the nix ecosystem:
 
   - Temporarily install any package using `nix shell nixpkgs#<PACKAGE_NAME>` - this can be e.g. useful if you accidentally removed home-manager from your packages on a non-NixOS machine. Alternatively, use [comma](https://github.com/nix-community/comma)
-- More info on `nix [...]` commands: https://nixos.org/manual/nix/stable/command-ref/new-cli/nix
+    - More info on `nix [...]` commands: https://nixos.org/manual/nix/stable/command-ref/new-cli/nix
   - When you are trying to setup a new configuration part, GitHub code search can really help you to find a working configuration. Just filter for `.nix` files and the options you are trying to set up.
   - getting packages at a different version than your target (or not packaged at all) can be done in most cases easily with fetchFromGithub (https://ryantm.github.io/nixpkgs/builders/fetchers/)
   - you can easily install old revisions of packages using https://lazamar.co.uk/nix-versions/. You can conveniently spawn a shell with a chosen package available using `vershell <NIXPKGS_REVISION> <PACKAGE>`. Just make sure to pick a revision that has flakes enabled, otherwise you will need the legacy way of spawning the shell (see the link for more info)