Render HTML files of MKDocs from Airflow Plugins

Hi, I am very new to Apache Airflow and Flask. I am trying to build a plugin for some project documentation using MK docs. I followed the plugin example on airflow documentation and the link appeared successfully. The problem is that only index.html is getting rendered. No CSS or images. I have searched across StackOverflow but nothing helpful came up. If you could help me or point in the right direction it will be helpful. I want to be able to see MKdocs index page with CSS and navigate to another .md/ html files.