add linter script

.github/workflows/repo_linter.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+# by default github actions doesn't fetch the whole repo so we are getting the latest commit on main
+git fetch origin main:main --depth=1
+
+# find the repo in the git diff and then set it to an env variables
+git diff main readme.md | grep ^+ | grep -Eo 'https.*#readme' | sed 's/#readme//' | xargs -I {} echo "::set-env name=REPO_TO_LINT::{}"
+
+# If there's no repo found leave an error message
+if [ -z ${REPO_TO_LINT+x} ];
+then 
+    echo "Link to your list using the form https://....#readme" && exit 0; 
+else
+    echo "Repo detected '$var'"; 
+    # Clone the repo into a new folder
+    echo "Cloning $REPO_TO_LINT" && mkdir cloned && cd cloned && git clone --depth=1 "$REPO_TO_LINT" .
+    npx awesome-lint
+fi