let's hope that works

.github/workflows/scripts/check-size.sh

@@ -11,15 +11,24 @@ check_size() {
     fi
 }
 
+check_md_name() {
+	shouldname="$(echo "$1" |
+		iconv --to-code=utf-8 |
+		sed "s/^\(src\/\)\?/src\//" |
+		tr '[:upper:]' '[:lower:]' |
+		tr ' ' '-')"
+	if [ "$shouldname" != "$1" ]; then
+		echo "$1 should be named $shouldname."
+		exit 1
+	fi
+}
+
 git diff --name-only `git merge-base origin/master HEAD` | while IFS= read -r file; do
     case "$file" in
         *.webp)
             echo "Checking size of $file"
             check_size $file
             ;;
-        *)
-            echo "Skipping $file"
-            ;;
+	*.md) check_md_name "$file" ;;
     esac
 done
-