docs(CONTRIBUTING): state what is mandatory or optional

Closes #12032
This commit is contained in:
Steve Mao
2015-07-01 10:11:49 +10:00
committed by Peter Bacon Darwin
parent d38f6ff401
commit 4cef752985
+2
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@@ -199,6 +199,8 @@ format that includes a **type**, a **scope** and a **subject**:
<footer>
```
The **header** is mandatory and the **scope** of the header is optional.
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