docs: fix some spelling

[jsoref]

Fixes misspellings identified by the check-spelling action.

The misspellings have been reported at https://github.com/jsoref/liquidjs/actions/runs/9538354838#summary-26287456265

The action will report that the changes in this PR would make it mostly happy: https://github.com/jsoref/liquidjs/actions/runs/9538354866#summary-26287456395

[coveralls]

Pull Request Test Coverage Report for Build 9538361733

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 99.159%

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Totals
Change from base Build 9376137572:	0.0%
Covered Lines:	2373
Relevant Lines:	2384

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💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 9545042501

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 99.159%

---

Totals
Change from base Build 9376137572:	0.0%
Covered Lines:	2373
Relevant Lines:	2384

---

💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 9545116671

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 99.159%

---

Totals
Change from base Build 9376137572:	0.0%
Covered Lines:	2373
Relevant Lines:	2384

---

💛 - Coveralls

[harttle]

@all-contributors please add @jsoref for docs

[allcontributors[bot]]

@harttle

I've put up a pull request to add @jsoref! :tada:

[github-actions[bot]]

:tada: This PR is included in version 10.14.0 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: