Document what php version should be listed.

[robindevitt]

Slack thread for reference : https://hmn.slack.com/archives/C5WSNGC9F/p1661867523037569

The reported error:

The configured PHP version “7.4.13” is not supported.
Try one of the following:

• 8.0
• 7.4

Setting the local-server php value to 7.4.13 in your composer.json file, causes the above error.

What not to do

"extra": {
    "altis": {
        "modules": {
            "local-chassis": {
                "php": "7.4.13"
            },
            "local-server": {
                "php": "7.4.13"
            }
        }
    }
}

Acceptance criteria

The values for local-server and local-chassis for php in composer.json should be noted that

• Only major and minor versions should be listed.
• The patch version should not be listed.

[veselala]

@robindevitt will work on the wording here