docs: clean up and remove TODOs

inputs/README.md

@@ -0,0 +1,22 @@
+# Inputs
+
+To allow use of the full nix language for my inputs, I use [genflake](https://github.com/jorsn/flakegen).
+Therefore, the flake I edit is located at `$FLAKE/_outputs.nix`.
+
+I also prefer using a more descriptive format for my inputs like so:
+
+```nix
+nixpkgs = {
+  type = "github";
+  owner = "NixOS";
+  repo = "nixpkgs";
+
+  # Branch name
+  ref = "nixos-unstable";
+
+  # Pin this input to a specific commit
+  rev = "842d9d80cfd4560648c785f8a4e6f3b096790e19";
+};
+```
+
+to make it more clear what is what in the flake URI

inputs/default.nix

@@ -1,4 +1,3 @@
-# TODO: add README
 let
   inherit (import ./lib.nix) mkInput mkHyprDep mkSrc;
   inherit (builtins) listToAttrs map removeAttrs;