docs(auth): Fixed section Enable your custom provider (#1768)
docs(auth): Fixed section Enable your custom provider (#1768)

in section Enable your custom provider by following an error was coming.
Was passed main parameter 'hal' but no main parameter was defined in your arg class
I fixed it by separating in 2 steps
1-Configure the parameters
2-Enable the oauth2 feature with `authn oauth2 enable`


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