Close the bracket in documentation

[ghost]

Description

There are small misspell fixes for documentation.
https://skaffold.dev/docs/how-tos/templating/

Submitter Checklist

These are the criteria that every PR should meet, please check them off as you
review them:

• Includes unit tests
• Mentions any output changes.
• Adds documentation as needed: user docs, YAML reference, CLI reference.
• Adds integration tests if needed.

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[codecov]

Codecov Report

Merging #3101 into master will not change coverage.
The diff coverage is n/a.

[nkubala]

thanks!

[nkubala]

@AmetPreply can you check and make sure you signed the CLA, and that your commit was made from the same email address you used to sign it?

[ghost]

@googlebot I signed it!

[googlebot]

CLAs look good, thanks!

ℹ️ Googlers: Go here for more info.