Doc updates/indexing. doc/admin_guide.txt, doc/customizing.txt, doc/features.txt, doc/installation.txt, doc/mysql.txt, doc/postgresql.txt: adding index entries doc/customizing.txt: reference schema changes later in document in addition to wiki. website/www/contents.txt: make wiki url https:.... Remove indices/tables as they don't show up in web interface. Put docs/announcement.txt into hidden toctree to silence warning from sphinx. Announcement.txt is referenced from index.txt so can't silence by adding to conf.py exclude_patern. website/www/index.txt: mention security and other improvements in jinja2 templates. website/www/conf.py: get rid of all warning by using exclude_patterns to ignore docs that aren't included. Remove exclude_trees using exclude_pattern instead. Make html_add_permalinks value acceptable so no warning reported. website/www/_static/style.css, website/www/_templtes/layout.html: add prev/next/index links for all doc pages.

--- a/website/www/conf.py	Mon May 11 11:12:25 2020 -0400
+++ b/website/www/conf.py	Wed May 13 00:40:14 2020 -0400
@@ -67,11 +67,11 @@
 #today_fmt = '%B %d, %Y'
 
 # List of documents that shouldn't be included in the build.
-#unused_docs = []
-
-# List of directories, relative to source directory, that shouldn't be searched
-# for source files.
-exclude_trees = ['.build']
+exclude_patterns = ['docs/index.txt',
+                    'docs/whatsnew-0.7.txt',
+                    'docs/whatsnew-0.8.txt',
+                    'docs/security.txt',
+                    '_tmp']
 
 # The reST default role (used for this markup: `text`) to use for all documents.
 #default_role = None
@@ -137,7 +137,7 @@
 # template names.
 #html_additional_pages = {}
 
-html_add_permalinks = False
+html_add_permalinks = ''
 
 # If false, no module index is generated.
 #html_use_modindex = True