Add annotator in baggy theme

+ Documentation about annotations

docs/en/index.rst

@@ -29,6 +29,7 @@ The main documentation for this application is organized into a couple sections:
    user/configuration
    user/first_article
    user/errors_during_fetching
+   user/annotations
    user/import
    user/download_articles
    user/filters

docs/en/user/annotations.rst

@@ -0,0 +1,24 @@
+Annotations
+===========
+
+In each article you read, you can write annotations. It's easier to understand with some pictures.
+
+Select the part of the article that you want to comment and click on the pencil:
+
+.. image:: ../../img/user/annotations_1.png
+   :alt: Select your text
+   :align: center
+
+Then, write your comment:
+
+.. image:: ../../img/user/annotations_2.png
+   :alt: Write your comment
+   :align: center
+
+The text is now highlighted and you can read your comment if you move the mouse cursor over it.
+
+.. image:: ../../img/user/annotations_3.png
+   :alt: Read your comment
+   :align: center
+
+You can create as many comments as you wish.