[DONT MERGE] docs: update README

[suzuki-shunsuke]

No description provided.

[tfcmt-app]

Plan Result (foo)

CI link

⚠️ Resource Deletion will happen ⚠️

This plan contains resource delete operation. Please check the plan result very carefully!

Plan: 0 to add, 1 to change, 1 to destroy.

• Update
  • github_issue_label.bar
• Delete
  • github_issue_label.foo

Change Result (Click me)

  # github_issue_label.bar will be updated in-place
  ~ resource "github_issue_label" "bar" {
      ~ color      = "FF0000" -> "FFFF00"
        id         = "tfcmt:bar"
        name       = "bar"
        # (3 unchanged attributes hidden)
    }

  # github_issue_label.foo will be destroyed
  - resource "github_issue_label" "foo" {
      - color      = "FF0000" -> null
      - etag       = "W/\"60e5608b8c2efd3f512d5f549936a55909f88d43ec7d27ec9ce52936f9c85e37\"" -> null
      - id         = "tfcmt:foo" -> null
      - name       = "foo" -> null
      - repository = "tfcmt" -> null
      - url        = "https://api.github.com/repos/suzuki-shunsuke/tfcmt/labels/foo" -> null
    }

Plan: 0 to add, 1 to change, 1 to destroy.

ℹ️ Objects have changed outside of Terraform

This feature was introduced from Terraform v0.15.4.
If you don't know this feature, you can ignore this.

Terraform detected the following changes made outside of Terraform since the
last "terraform apply":

  # github_issue_label.foo has been changed
  ~ resource "github_issue_label" "foo" {
      ~ etag       = "W/\"2c48b8bbcbe73918bb1d1852c27f9b8a96f887ea52785e3909fda184c002de86\"" -> "W/\"60e5608b8c2efd3f512d5f549936a55909f88d43ec7d27ec9ce52936f9c85e37\""
        id         = "tfcmt:foo"
        name       = "foo"
        # (3 unchanged attributes hidden)
    }
  # github_issue_label.bar has been changed
  ~ resource "github_issue_label" "bar" {
      ~ color      = "FFFF00" -> "FF0000"
      ~ etag       = "W/\"0cbf737bd3e08795e7341fd22f6ce0c3c2064a4aff497acf4fcd1fa5764ab8be\"" -> "W/\"9aee3068f00b871af0e0af4e55352a0a669318862d8605cb03aa9eeb12edb683\""
        id         = "tfcmt:bar"
        name       = "bar"
        # (2 unchanged attributes hidden)
    }

Unless you have made equivalent changes to your configuration, or ignored the