functions: attributes generated by quick start are undocumented

[KylePeterDavies]

Describe the Issue:

If you generate a quick start for Go with doctl ...

doctl serverless init --language go test

doctl will generate a quick start and it's project.yml for the language. If you inspect the generated project.yml

parameters: {}
environment: {}
packages:
    - name: sample
      shared: false
      environment: {}
      parameters: {}
      annotations: {}
      functions:
        - name: hello
          binary: false
          main: ""
          runtime: go:default
          web: true
          webSecure: false
          parameters: {}
          environment: {}
          annotations: {}
          limits: {}

The binary and annotations attributes are undocumented at Project Configuration YAML File

Environment:

doctl version 1.105.0-release
release 1.106.0 is available, check it out!