all: resync with master

scripts/make/md-lint.sh

@@ -0,0 +1,23 @@
+#!/bin/sh
+
+# This comment is used to simplify checking local copies of the script.  Bump
+# this number every time a remarkable change is made to this script.
+#
+# AdGuard-Project-Version: 2
+
+verbose="${VERBOSE:-0}"
+readonly verbose
+
+set -e -f -u
+
+if [ "$verbose" -gt '0' ]
+then
+	set -x
+fi
+
+# NOTE: Adjust for your project.
+# markdownlint\
+# 	./README.md\
+# 	;
+
+# TODO(e.burkov):  Lint markdown documents within this project.