fix: typos in documentation

[oglok]

fix a typo

[github-actions]

CLA Assistant Lite bot All contributors have signed the CLA ✍️ ✅

[ruquanzhao]

Hi @oglok, great work on this contribution! 🙌
To proceed with merging into master, could you please sign the Contributor License Agreement (CLA)? This is a standard step for all contributors.

[coveralls]

Pull Request Test Coverage Report for Build 20605712536

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 7 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.01%) to 46.331%

---

Files with Coverage Reduction	New Missed Lines	%
pkg/engine/operation/parser/parser.go	3	74.16%
pkg/engine/operation/parser/spec_parser.go	4	56.1%

Totals
Change from base Build 16158708775:	-0.01%
Covered Lines:	11377
Relevant Lines:	24556

---

💛 - Coveralls

[oglok]

I have read the CLA Document and I hereby sign the CLA

[oglok]

Hi @oglok, great work on this contribution! 🙌 To proceed with merging into master, could you please sign the Contributor License Agreement (CLA)? This is a standard step for all contributors.

Thanks! I have added a comment in this PR with the following sentence "I have read the CLA Document and I hereby sign the CLA". Is that enough?

[ruquanzhao]

/lgtm

[ruquanzhao]

Hi @oglok, great work on this contribution! 🙌 To proceed with merging into master, could you please sign the Contributor License Agreement (CLA)? This is a standard step for all contributors.

Thanks! I have added a comment in this PR with the following sentence "I have read the CLA Document and I hereby sign the CLA". Is that enough?

Thanks again! This PR has been merged!