Feature Request - Interpolate variables in examples too

[vikas027]

It would be good to have interpolation of variables in examples too

variables:
  iac: terraform

hello:
  summary: some task
  command: |
    echo which {{ .iac }}
    which {{ .iac }}
  examples: # robo help tf-plan-mod
    - description: Find path of {{ .iac }}
      command: which {{ .iac }}

This results in this

✦ ❯ robo help hello

  Usage:

    hello 

  Description:

    some task

  Examples:
  
    Find path of {{ .iac }}
    $ which {{ .iac }}

I would like is

✦ ❯ robo help hello

  Usage:

    hello 

  Description:

    some task

  Examples:
  
    Find path of terraform
    $ which terraform

[jenpet]

I created a small pr for this and also added the usage property: #57

[jenpet]

PR is merged @vikas027. Should be available in the next release (0.8.0) I assume.