fix password en var in docs

[drdamour]

noticed this was wrong

[soufi]

I'll take a look at this. thank you @drdamour

[soufi]

Hello @drdamour, The documentation is generated using the following:

• template/
• provider resources description
• examples

You made a change directly to docs which is not good since it will be lost the next time we generate the documentation.

Your change needs to be made in the source which is: examples/provider/provider.tf.

to generate documentation, we use tfplugindocs generate checkout README.

I will close this one.