import plugins from core and restructure repo

gravatar/Readme.rst

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+Gravatar
+--------
+
+This plugin assigns the ``author_gravatar`` variable to the Gravatar URL and
+makes the variable available within the article's context. You can add
+``AUTHOR_EMAIL`` to your settings file to define the default author's email
+address. Obviously, that email address must be associated with a Gravatar
+account.
+
+Alternatively, you can provide an email address from within article metadata::
+
+    :email:  john.doe@example.com
+
+If the email address is defined via at least one of the two methods above,
+the ``author_gravatar`` variable is added to the article's context.