[BUG] Typos in documentation & parser.py

[3laaHisham]

Describe the bug

While navigating through the notes.pdf and later at parser.py, I think I found some unintended words in place.

To Reproduce

1. /docs/notes.pdf Section 6.2 Multipole moment intergral: Instead of: "To compute the overlap of a set of molecular orbitals" It should be: "To compute the moment of a set of molecular orbitals"
2. /gbasis/parser.py Line 217: Instead of: "Tolerance must be provided as True or False." It should be: "Overlap must be provided as True or False."

Expected behaviour

Minimal Effect on users and developers' experience.

Screenshots

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System Information:

• OS:
• Python version:
• NumPy version:
• SciPy version:

Additional context

[Charlie-1-3]

I have corrected the above-mentioned typos in the documentation. Also if I find any more of these errors in the docs, I will see to it immediately.