Adjust maxAge minimum & documentation

[bigludo7]

What type of PR is this?

Add one of the following kinds:

• enhancement/feature

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #184

Special notes for reviewers:

Changelog input

 release-note
- Remove minimum 60 seconds to maxAge.
  -  Absence of maxAge means "any age"
  -  maxAge=0 means a fresh calculation.

Additional documentation

This section can be blank.

docs

[github-actions[bot]]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ ACTION	actionlint	2		0	0.04s
✅ OPENAPI	spectral	3		0	4.52s
✅ REPOSITORY	git_diff	yes		no	0.01s
✅ REPOSITORY	secretlint	yes		no	0.72s
✅ YAML	yamllint	3		0	0.56s

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[bigludo7]

@alpaycetin74 @jlurien Kind reminder on this one. Is there still blocking point for you?

[alpaycetin74]

LGTM, thank you.