Typos in "update user" v3 api documentation

[jduss4]

Issue

The v3 CAPI "update user" example has several typos, one of which means requests following its instructions will fail.

Context

The problems:

• missing closing bracket in JSON breaks functionality
• "environment" is misspelled but does not break functionality

Links:

• link to api docs
• documentation location in this repo

Steps to Reproduce

1. Navigate to the update a user documentation
2. Log into a CF instance and select a user guid to update
3. Run cf curl with the example code, changing the user guid to your test user
4. Receive a "Request invalid due to parse error: invalid request body" response

Expected result

Once the closing bracket is added, the example will return an updated user object.

Current result

Invalid request body error

Possible Fix

I would have made a PR with the below suggested fix, but unfortunately the link to the CLA is not currently up to date and I am not sure if I would be able to sign it, as I am acting in my capacity as a federal employee. However, I believe this update to the documentation would remedy both typos (note: indentation was also changed):

  -d '{
    "metadata": {
      "labels": { "environment": "production" },
      "annotations": { "note": "detailed information" }
    }
  }'

Thank you!