Mention the INDEX_SAVE_AS setting in FAQ and direct templates

This setting can be particularly useful when making a static homepage.

docs/faq.rst

@@ -135,6 +135,10 @@ your home page. The following Markdown example could be stored in
 
     Thank you for visiting. Welcome!
 
+If the original blog index is still wanted, it can then be saved in a
+different location by setting ``INDEX_SAVE_AS = 'blog_index.html`` for
+the ``''index'`` direct template.
+
 What if I want to disable feed generation?
 ==========================================
 

docs/settings.rst

@@ -341,7 +341,7 @@ Setting name (followed by default value, if any)        What does it do?
 
 ``DIRECT_TEMPLATES``, which are ``('index', 'tags', 'categories', 'archives')``
 by default, work a bit differently than noted above. Only the ``_SAVE_AS``
-settings are available:
+settings are available, but it is available for any direct template:
 
 =============================================  ===============================================
 Setting name (followed by default value)       What does it do?
@@ -350,6 +350,7 @@ Setting name (followed by default value)       What does it do?
 ``AUTHORS_SAVE_AS = 'authors.html'``           The location to save the author list.
 ``CATEGORIES_SAVE_AS = 'categories.html'``     The location to save the category list.
 ``TAGS_SAVE_AS = 'tags.html'``                 The location to save the tag list.
+``INDEX_SAVE_AS = 'index.html'``               The location to save the list of articles.
 =============================================  ===============================================
 
 URLs for direct template pages are theme-dependent. Some themes hard-code them: