Feature/documentation (#170)

* Splits documentation over multiple folders

* Editor guide documentation intro

* Adds segment dashboard documentation

* Adds editor documenation regarding segment creation

* Adds logo with padding for the documentation

* Updates usage guide documentation

* Splits sandbox and custom rules documentation

* Improves ‘Create a variant’ documentation

* Adds documentation regarding streamfield and template tags

* Consistent StreamField references

* Feedback from M. Dingjan

* Remove ‘coming soon’ section

* Enable sandbox debug toolbar

* Updated documentation

docs/usage_guide/implementation.rst

@@ -0,0 +1,71 @@
+Implementation
+==============
+
+Extending a page to be personalisable
+-------------------------------------
+Wagxperience offers a ``PersonalisablePage`` base class to extend from.
+This is a standard ``Page`` class with personalisation options added.
+
+
+Creating a new personalisable page
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Import and extend the ``personalisation.models.PersonalisablePage`` class to
+create a personalisable page.
+
+A very simple example for a personalisable homepage:
+
+.. code-block:: python
+
+    from wagtail.wagtailcore.models import Page
+    from wagtail_personalisation.models import PersonalisablePageMixin
+
+    class HomePage(PersonalisablePageMixin, Page):
+        pass
+
+All you need is the ``PersonalisablePageMixin`` mixin and a Wagtail ``Page``
+class of your liking.
+
+
+.. _implementing_streamfield_blocks:
+
+Adding personalisable StreamField blocks
+----------------------------------------
+
+Taking things a step further, you can also add personalisable StreamField blocks
+to your page models. Below is the full Homepage model used in the sandbox.
+
+.. literalinclude:: ../../sandbox/sandbox/apps/home/models.py
+
+
+.. _implementing_template_blocks:
+
+Using template blocks for personalisation
+-----------------------------------------
+
+*Please note that using the personalisable template tag is not the recommended
+method for adding personalisation to your content, as it is largely decoupled
+from the administration interface. Use responsibly.*
+
+You can add a template block that only shows its contents to users of a
+specific segment. This is done using the "segment" block.
+
+When editing templates make sure to load the ``wagtail_personalisation_tags``
+tags library in the template:
+
+.. code-block:: jinja
+
+    {% load wagtail_personalisation_tags %}
+
+After that you can add a template block with the name of the segment you want
+the content to show up for:
+
+.. code-block:: jinja
+
+    {% segment name="My Segment" %}
+        <p>Only users within "My Segment" see this!</p>
+    {% endsegment %}
+
+The template block currently only supports one segment at a time. If you want
+to target multiple segments you will have to make multiple blocks with the
+same content.