Wrong parameters order and wrong naming

Wrong parameters order and wrong naming on "Using Password Encoders" section
Applied comments
minor #3858 Clarified Password Encoders example (WouterJ)

This PR was merged into the 2.3 branch.

Discussion
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Clarified Password Encoders example

This replaces #3618

| Q   | A
| --- | ---
| Doc fix? | yes
| New docs? | no
| Applies to | all
| Ficket tickets | -

Commits
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02f072a Applied comments
17999cf Wrong parameters order and wrong naming