Fix a broken link to the load page

[stkerr]

Description

The current link for the loaded stocks page is invalid and goes to a 404 page. This is because the URL is incorrect.

How has this been tested?

I have visited the URL https://openbb-finance.github.io/OpenBBTerminal/terminal/stocks/load/ and confirmed it does not 404.

Checklist:

• Update our Hugo documentation following these guidelines.
• Update our tests following these guidelines.
• Make sure you are following our CONTRIBUTING guidelines.
• If a feature was added make sure to add it to the corresponding scripts file.

Others

• I have performed a self-review of my own code.
• I have commented my code, particularly in hard-to-understand areas.
• My code passes all the checks pylint, flake8, black, ... To speed up development you should run pre-commit install.
• New and existing unit tests pass locally with my changes. You can test this locally using pytest tests/....

[jmaslek]

Nice catch! Thanks!