message: Document no changelog label
diff: @@ -278,21 +278,18 @@ have prepared several scripts which maximally automate the process:
  The following branches are used to develop the product:
  -- **wip/[github_user_name]/[feature]**
  - Feature branches. These are temporary branches used by the team to develop a
  - particular feature.
  -- **develop**
  - Contains the most recent changes to the product. After successful review, the
  - feature branches are merged here. Each commit to this branch will result in a
  - nightly build of the product accessible as CI artifacts.
  -
  -- **unstable**
  - Contains only those commits which can be considered unstable product releases.
  - Each commit to this branch will result in an unstable release of the product
  - and will be published on GitHub as a pre-release. The build version and build
  - description will be automatically fetched from the newest `CHANGELOG.md` entry
  - and will fail if the version will not be of the form
  - `[major].[minor].[patch]-[sfx]`, where `[sfx]` is one of `alpha.[n]`,
  +- **wip/[github_user_name]/[feature]** Feature branches. These are temporary
  + branches used by the team to develop a particular feature.
  +- **develop** Contains the most recent changes to the product. After successful
  + review, the feature branches are merged here. Each commit to this branch will
  + result in a nightly build of the product accessible as CI artifacts.
  +
  +- **unstable** Contains only those commits which can be considered unstable
  + product releases. Each commit to this branch will result in an unstable
  + release of the product and will be published on GitHub as a pre-release. The
  + build version and build description will be automatically fetched from the
  + newest `CHANGELOG.md` entry and will fail if the version will not be of the
  + form `[major].[minor].[patch]-[sfx]`, where `[sfx]` is one of `alpha.[n]`,
  `beta.[n]`, or `rc.[n]`, where `[n]` is an unstable build number.
  - **stable** Contains only those commits which can be considered stable product
  @@ -312,9 +309,8 @@ PR, simply add `[ci build]` anywhere in the PR description.
  By default, CI would fail if the `CHANGELOG.md` file does not need to be
  updated. However, sometimes there are PRs that does not change anything
  -significant in the final product. You can then simply add
  -`[ci no changelog needed]` anywhere in your PR description to skip this
  -assertion.
  +significant in the final product. You can then simply add the 'CI: No changelog
  +needed' label to the PR to skip this assertion.
  ### Publishing Results
  