[FIX] *: RST cleanup

RST cleanup to comply with the RST guidelines. This is required so we
can use "make test", as there are currently hundreds of errors. For now,
it is unusable because of the oldest code in this repo.

closes odoo/documentation#3581

Signed-off-by: Castillo Jonathan (jcs) <jcs@odoo.com>

content/developer/reference/backend/reports.rst

@@ -164,6 +164,7 @@ More parameters can be passed as a query string
 
 Useful Remarks
 --------------
+
 * Twitter Bootstrap and FontAwesome classes can be used in your report
   template
 * Local CSS can be put directly in the template
@@ -277,6 +278,7 @@ the template, such as data from additional models:
 
 Custom fonts
 ============
+
 If you want to use custom fonts you will need to add your custom font and the related less/CSS to the ``web.reports_assets_common`` assets bundle.
 Adding your custom font(s) to ``web.assets_common`` or ``web.assets_backend`` will not make your font available in QWeb reports.