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+## <a name="commit"></a> Commit Message Format
+
+_This specification is inspired by and supersedes the [Brainclements commit message format](https://gist.github.com/brianclements/841ea7bffdb01346392c)._
+
+We have very precise rules over how our Git commit messages must be formatted.
+This format leads to **easier to read commit history**.
+
+Each commit message consists of a **header**, a **body**, and a **footer**.
+
+```
+<header>
+<BLANK LINE>
+<body>
+<BLANK LINE>
+<footer>
+```
+
+The `header` is mandatory and must conform to the [Commit Message Header](#commit-header) format.
+
+The `body` is mandatory for all commits except for those of type "docs".
+When the body is present it must be at least 20 characters long and must conform to the [Commit Message Body](#commit-body) format.
+
+The `footer` is optional. The [Commit Message Footer](#commit-footer) format describes what the footer is used for and the structure it must have.
+
+#### <a name="commit-header"></a>Commit Message Header
+
+```
+<type>(<scope>)(!?): <short summary>
+  │       │      │      │
+  │       │      │      └─⫸ Summary in present tense. Not capitalized. No period at the end.
+  │       │      │
+  │       │      └─⫸ Exclamation mark: breaking change
+  │       │
+  │       └─⫸ Commit Scope: bot|website
+  │
+  └─⫸ Commit Type: build|ci|docs|feat|fix|perf|refactor|test
+```
+
+The `<type>` and `<summary>` fields are mandatory, the `(<scope>)` field is optional.  
+Exclamation mark is optional too, but it's used to mark breaking changes.
+
+##### Type
+
+Must be one of the following:
+
+- **build**: Changes that affect the build system or external dependencies (example scopes: gulp, broccoli, npm)
+- **ci**: Changes to our CI configuration files and scripts (examples: CircleCi, SauceLabs)
+- **docs**: Documentation only changes
+- **feat**: A new feature
+- **fix**: A bug fix
+- **perf**: A code change that improves performance
+- **refactor**: A code change that neither fixes a bug nor adds a feature
+- **test**: Adding missing tests or correcting existing tests
+
+##### Scope
+
+The scope should be the name of the npm package affected (as perceived by the person reading the changelog generated from commit messages).
+
+The following is the list of supported scopes:
+
+- `bot`
+- `website`
+
+There are currently a few exceptions to the "use package name" rule:
+
+- none/empty string: useful for `test` and `refactor` changes that are done across all packages (e.g. `test: add missing unit tests`) and for docs changes that are not related to a specific package (e.g. `docs: fix typo in tutorial`).
+
+##### Summary
+
+Use the summary field to provide a succinct description of the change:
+
+- use the imperative, present tense: "change" not "changed" nor "changes"
+- don't capitalize the first letter
+- no dot (.) at the end
+
+#### <a name="commit-body"></a>Commit Message Body
+
+Just as in the summary, use the imperative, present tense: "fix" not "fixed" nor "fixes".
+
+Explain the motivation for the change in the commit message body. This commit message should explain _why_ you are making the change.
+You can include a comparison of the previous behavior with the new behavior in order to illustrate the impact of the change.
+
+#### <a name="commit-footer"></a>Commit Message Footer
+
+The footer is optional and is used for two purposes:
+
+- To reference issues that this commit closes
+- To include information that doesn't fit in the header or body, such as a link to a file or a suggestion to review a pull request
+
+The format for the footer is as follows:
+
+```
+Closes/Fixes #<issue number>
+```
+
+or
+
+```
+See pull request #<pull request number>
+```
+
+### Revert commits
+
+If the commit reverts a previous commit, it should begin with `revert: `, followed by the header of the reverted commit.
+
+The content of the commit message body should contain:
+
+- information about the SHA of the commit being reverted in the following format: `This reverts commit <SHA>`,
+- a clear description of the reason for reverting the commit message.
