diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..1a4a23a
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,10 @@
+root = true
+
+[*]
+charset = utf-8
+indent_size = 4
+indent_style = space
+insert_final_newline = true
+
+[*.{yml,yaml}]
+indent_size = 2
diff --git a/.markdownlint-cli2.yaml b/.markdownlint-cli2.yaml
new file mode 100644
index 0000000..4b01223
--- /dev/null
+++ b/.markdownlint-cli2.yaml
@@ -0,0 +1,13 @@
+# https://github.com/DavidAnson/markdownlint/blob/main/doc/Rules.md
+
+config:
+  line-length: false
+  link-fragments: false
+  list-marker-space: false # https://github.com/prettier/prettier/issues/5019
+  no-alt-text: false
+  no-bare-urls: false
+  no-inline-html: false
+  no-trailing-punctuation: false
+  ul-indent:
+    indent: 4
+gitignore: true
diff --git a/docs/ssh-sleutel-instellen.md b/docs/ssh-sleutel-instellen.md
index a446990..db9b472 100644
--- a/docs/ssh-sleutel-instellen.md
+++ b/docs/ssh-sleutel-instellen.md
@@ -4,8 +4,8 @@ Als je met meerdere personen samenwerkt aan een project, dan zal je de code in e
 
 Bij voorkeur gebruik je hiervoor authenticatie op basis van een SSH-sleutel. Hiervoor moet je een SSH-sleutel genereren en de publieke sleutel toevoegen aan je Github-account. Volg hiervoor de volgende tutorials:
 
-- [Generating a new SSH key and adding it to the ssh-agent](https://docs.github.com/en/authentication/connecting-to-github-with-ssh/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent)
-  - Mocht je reeds een SSH-sleutel hebben in de map `~/.ssh/` (`~` is de home-directory van jouw gebruiker), dan kan je deze hergebruiken.
-  - Je kan ook aparte SSH-sleutel genereren voor verschillende accounts of repositories.
-- [Adding a new SSH key to your GitHub account](https://docs.github.com/en/authentication/connecting-to-github-with-ssh/adding-a-new-ssh-key-to-your-github-account)
-- [Testing your SSH connection](https://docs.github.com/en/authentication/connecting-to-github-with-ssh/testing-your-ssh-connection)
+-   [Generating a new SSH key and adding it to the ssh-agent](https://docs.github.com/en/authentication/connecting-to-github-with-ssh/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent)
+    -   Mocht je reeds een SSH-sleutel hebben in de map `~/.ssh/` (`~` is de home-directory van jouw gebruiker), dan kan je deze hergebruiken.
+    -   Je kan ook aparte SSH-sleutel genereren voor verschillende accounts of repositories.
+-   [Adding a new SSH key to your GitHub account](https://docs.github.com/en/authentication/connecting-to-github-with-ssh/adding-a-new-ssh-key-to-your-github-account)
+-   [Testing your SSH connection](https://docs.github.com/en/authentication/connecting-to-github-with-ssh/testing-your-ssh-connection)