added a few more checks using pre-commit

.pre-commit-config.yaml

@@ -3,3 +3,12 @@ repos:
     rev: v0.13.0
     hooks:
       - id: markdownlint_docker
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v5.0.0
+    hooks:
+      - id: detect-private-key
+      - id: end-of-file-fixer
+  - repo: https://github.com/crate-ci/typos
+    rev: v1.28.4
+    hooks:
+      - id: typos

shell.nix

@@ -3,5 +3,6 @@
  pkgs.mkShell {
    packages = with pkgs; [
       pre-commit
+      typos
    ];
 }