v1.7.3

• Refactor global config variable as RwLock for improve performance on multiple threads.
• Fix Markdown CodeBlock format by use code formatter as same as language.
• Fix format_for for return raw value when file_type not supports.
• Ignore init config file if already exist.
• Add JSON5 file_type support.
• Avoid parse config error, when config is empty.
• Fix markdown for avoid convert any with underline surrounded for avoid change URL.