I'm using Pycharm on Windows 10 and I'd like to use a html file inside a python file, so what should I do? I have my code already written, but the webpage seems not to run this html file.

To visualize this, I share my code:

from flask import Flask, render_template

app=Flask(__name__)

@app.route('/')
def home():
    return render_template("home.html")


@app.route('/about/')
def about():
    return render_template("about.html")

if __name__=="__main__":
    app.run(debug=True)

And after deploying this python file locally, I'd like these htmls to work, but the program doesn't seem to see them. Where should I put these html files or what should I do with them? I have them all in a one folder on my PC.