git-authors: add page (#5951)

pages/common/git-authors.md

@@ -0,0 +1,17 @@
+# git authors
+
+> Display a log or list of committers of a Git repository. Everything except `--list` will create a new file called `AUTHORS`.
+> Part of `git-extras`.
+> More information: <https://github.com/tj/git-extras/blob/master/Commands.md#git-authors>.
+
+- Create or replace the `AUTHORS` file with a list of committers and open it in the default editor:
+
+`git authors`
+
+- Print a full list of committers:
+
+`git authors --list`
+
+- List committers, excluding emails, in the default editor, reading from the `AUTHORS` file:
+
+`git authors --no-email`