markdown lint

.github/workflows/markdownlint.yml

@@ -0,0 +1,20 @@
+name: markdownlint
+
+on: [push, pull_request]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v1
+
+    - name: apt
+      run: sudo apt-get install -y nodejs npm
+
+    - name: npm install
+      run: npm i -g markdownlint-cli
+
+    - name: markdown lint
+      run: markdownlint .

.markdownlint.json

@@ -0,0 +1,4 @@
+{
+	"default": true,
+	"MD013": { "line_length": 200 }
+}

readme.md

@@ -1,5 +1,7 @@
 # Awesome Minetest [![Awesome](https://awesome.re/badge-flat.svg)](https://github.com/awesome-minetest/awesome-minetest)
 
+![markdown](https://github.com/mt-mods/awesome-minetest/workflows/markdownlint/badge.svg)
+
 > List of awesome things related to Minetest
 
 [Minetest](https://minetest.net/) is an open source infinite-world block sandbox game engine with support for survival and crafting
@@ -95,10 +97,6 @@
 - [moretrees](https://gitlab.com/VanessaE/moretrees) adds several new tree types
 - [ethereal](https://notabug.org/TenPlus1/ethereal) adds many new biomes, trees and plants
 
-### Communication
-
-- [mail](https://github.com/thomasrudin-mt/mail) ingame mail and optional webmail
-
 ### Technology
 
 - [mesecons](https://github.com/minetest-mods/mesecons) Mod for minetest that adds digital circuitry