added a new symbol

[hoseinit]

اضافه کردن پتروآگاه

[sfmqrb]

@hoseinit Thank you for the PR.

Please do the following to update symbols json file properly.

First go to scripts directory. Then run python update_symbols_json.py or in case you use poetry poetry run python update_symbols_json.py.

There are many tickers need to be updated and پتروآگاه is only one of them.

[hoseinit]

Thank you very much @sfmqrb for the comprehensive explanation.
I did what you told me, of course I needed to solve some issues in between because I am a newbie to Python.
I will contribute more to this repo in the future.

[sfmqrb]

LGTM @Glyphack

[Glyphack]

Thanks @hoseinit for the contribution and @sfmqrb for the review 🚀