fix(eslint-plugin): fix configuration guide link

[yassernasc]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/ngrx/platform/blob/master/CONTRIBUTING.md#commit
• Tests for the changes have been added (for bug fixes / features)
• Documentation has been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[x] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[ ] Other... Please describe:

What is the current behavior?

Because of the dot at the end, the link goes to the ngrx.io's Page Not Found message.

What is the new behavior?

fixed :)

Does this PR introduce a breaking change?

[ ] Yes
[x] No

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[timdeschryver]

Hi, thanks for the PR!
The original sentence is a bit short and bold I think.
What do you think of making it friendly?

Suggested change

	Check ${docs} if you want to change the configuration.
	Take a look at the docs at ${docs} if you want to change the default configuration.

[yassernasc]

good catch

[timdeschryver]

Thanks !