🐛Fix the typo in the json content

[mkumatag]

What this PR does / why we need it:

Currently, there is an error in the JSON text mentioned in the developers' guide which needs to be fixed. As per json standard, there is no trailing comma is supported.

e.g:

$ echo '
{
  "name": "infrastructure-aws",
  "config": {
    "componentsFile": "infrastructure-components.yaml",
    "nextVersion": "v0.5.0",
  }
}
'| jq
parse error: Expected another key-value pair at line 7, column 3

After the fix:

$ echo '                                                                                                                                                                                           4 ↵
{
  "name": "infrastructure-aws",
  "config": {
    "componentsFile": "infrastructure-components.yaml",
    "nextVersion": "v0.5.0"
  }
}
'| jq
{
  "name": "infrastructure-aws",
  "config": {
    "componentsFile": "infrastructure-components.yaml",
    "nextVersion": "v0.5.0"
  }
}

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #

[randomvariable]

/lgtm

[killianmuldoon]

Good find!
Is there any way to run linters on our tagged (yaml, json etc.) code blocks in our MD files? There could be a few more surprises like this for users.

/lgtm

[randomvariable]

Is there any way to run linters on our tagged (yaml, json etc.) code blocks in our MD files?

I'm using markdownlint-cli2 in a downstream repository running in a Docker nodejs container. It would be possible to add that here too.

That said, I suspect it wouldn't be able to catch this type of error as it would need support for language parsing/validation for multiple languages.

[vincepri]

/approve
/lgtm

[k8s-ci-robot]

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