Correct spelling errors in documentation

[savvar9991]

1. "unecessary" → "unnecessary"

   • Correct spelling of the word to align with standard English usage.

2. "supechain" → "superchain"

   • Corrected a misspelling to accurately reflect the intended term.

3. "withdraws" → "withdrawals"

   • Adjusted the term for grammatical correctness and proper context.