Fixing warnings in PHP template

[spekulatius]

Description

This fixes a few warning you get when using the PHP template:

• naming convention (missing /) which will become an error with composer v2: Deprecation warning: Your package name function-php7.2 is invalid, it should have a vendor name, a forward slash, and a package name. The vendor and package name can be words separated by -, . or _. The complete name should match "^[a-z0-9]([_.-]?[a-z0-9]+)*/[a-z0-9](([_.]?|-{0,2})[a-z0-9]+)*$". Make sure you fix this as Composer 2.0 will error.
• missing license

Motivation and Context

To avoid fixing every time.

How Has This Been Tested?

• cd into folder
• composer validate

Types of changes

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [ ] Version change (see: Impact to existing users)

Impact to existing users

As a template it shouldn't affect any existing users.

Checklist:

• [ ] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [x] I've read the CONTRIBUTION guide
• [x] I have signed-off my commits with git commit -s
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.

[spekulatius]

Hey @alexellis

just following to see what your take on this is? Pretty small change without larger implications afaik.

Cheers, Peter

[alexellis]

Thank you for your PR and for being a user of openfaas. Please take a look at our new guide on Getting the most out of OpenFaaS as an end-user

[spekulatius]

Thanks @alexellis. I'll check it out later on