We now want to move the design from a static html file to using Flask Jinja template rendering. For this, you must:

• Migrate / split the HTML code into templates/_base.html (base template) and templates/index.html (child);
  • Note: use Jinja2 template inheritance with an empty content block;
• Modify server.py to call render_template and actually serve our new design.
• Also create about.html and a Flask function for serving it (fill it with whatever content you want ;) );
• Finally, fix the URLs in the template's menu to point to the appropriate pages.