Makes sure provided content block is inside the specified file.

NOTE
The logic uses a very primitive approach. Do NOT use with large files.

• view initial config.yml content:

  $ cat config.yml
  image: nginx:latest

• run blockinfile:

  blockinfile -path config.yml -content 'name: app'

• examine content:

  $ cat config.yml
  image: nginx:latest
  # BEGIN MANAGED BLOCK
  name: app
  # END MANAGED BLOCK

• run blockinfile again:

  blockinfile -path config.yml -content 'name: server'

• examine updated content:

  $ cat config.yml
  image: nginx:latest
  # BEGIN MANAGED BLOCK
  name: server
  # END MANAGED BLOCK

terraform-docs markdown table . | blockinfile -path README.md -marker '# {{ .Mark }} TERRAFORM DOCS' -content -