fix: correct spelling mistakes found by CodeSpell

[abhi-14gyan]

Summary

Fix 6 spelling typos across library documentation, comments, and docstrings. All issues were identified by running CodeSpell on the repository.

No logic or behavior changes — only comments, docstrings, and documentation are affected.

Changes

File	Line	Before	After
library/README.md	181	informations	information
library/src/iqb/calculator.py	85	interation	iteration
library/src/iqb/cli/cache_status.py	35	modifed	modified
library/src/iqb/cli/cache_status.py	35	on dish	on disk
library/src/iqb/pipeline/init.py	98	pipline	pipeline
library/src/iqb/pipeline/pipeline.py	117	synching	syncing

How it was found

codespell --skip=".git,*.pyc,__pycache__,.mypy_cache,.ruff_cache,*.egg-info,uv.lock,*.geojson,*.csv" .

Note: CodeSpell also flags THA in prototype/pages/IQB_Map.py:102. This is a false positive — it is Thailand's ISO 3166-1 alpha-3 country code used as a dictionary key.

Testing

• ruff check . passes
• uv run pytest — 276 passed, 11 pre-existing failures (unrelated to this change)
• Re-running CodeSpell shows only the THA false positive

[bassosimone]

Thank you, this diff looks good to me and I will eventually pick it up for merging.

[abhi-14gyan]

@bassosimone Happy to help.

[bassosimone]

After listing our project for GSoC, we received a large amount of pull requests across several repositories. We are dealing with the backlog, but this would take time. We will get back to this pull request eventually. In the meanwhile, if you are a GSoC applicant, please read our updated GSoC policy: https://github.com/m-lab/gsoc/.