From 0a8c638411f1da47ed137ed91739662d687dd0b8 Mon Sep 17 00:00:00 2001
From: Varac <varac@varac.net>
Date: Tue, 30 Mar 2021 21:51:54 +0200
Subject: [PATCH] Add hadolint, shellcheck and shfmt to CONTRIBUTING.md

---
 CONTRIBUTING.md | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index d504785e1..0a8b888b9 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -8,8 +8,19 @@ Make sure you have development dependencies installed in your development enviro
 pip install -r requirements-dev.txt
 ```
 
-We use `pre-commit` to maintain and install pre-commit hooks that should be executed
-before each commit. Use the following commands to install the hooks
+## pre-commit hooks
+
+We use [pre-commit](https://pre-commit.com/) to maintain and install pre-commit
+hooks that should be executed before each commit.
+
+
+Please install these required tools on your system:
+
+* [hadolint](https://github.com/hadolint/hadolint) for linting the `Dockerfile`
+* [shellcheck](https://www.shellcheck.net/) and
+* [shfmt](https://github.com/mvdan/sh) to lint and validate shell scripts
+
+Then install pre-commit hooks:
 
 ```
 pre-commit install
-- 
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