Add script to fix Markdown style errors

scripts/fix_markdown_style_errors.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+#
+# Fix markdown style errors,
+# as is recommended by the Markdown checker.
+#
+# Usage:
+#
+#   ./scripts/fix_markdown_style_errors.sh
+
+if [[ "$PWD" =~ scripts$ ]]; then
+    echo "FATAL ERROR."
+    echo "Please run the script from the project root. "
+    echo "Present working director: $PWD"
+    echo " "
+    echo "Tip: like this"
+    echo " "
+    echo "  ./scripts/fix_markdown_style_errors.sh"
+    echo " "
+    exit 42
+fi
+
+./scripts/remove_trailing_spaces.sh