[PATCH v3 6/6] NEWS: update "Tag exclusion" section

[Pieter Praet]

---

Added note re new configurations, as suggested by Austin:
  id:"20120123044108.GS16740 at mit.edu"

 NEWS |   19 +++++++++++++++----
 1 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/NEWS b/NEWS
index 2c2d9e9..2acdce5 100644
--- a/NEWS
+++ b/NEWS
@@ -13,10 +13,21 @@ Reply to sender
 
 Tag exclusion
 
-  Tags can be automatically excluded from search results unless they
-  appear explicitly in a query.  By default, notmuch excludes the tags
-  deleted and spam.  This can be changed using the new config setting
-  search.auto_exclude_tags.
+  Tags can be automatically excluded from search results by adding them
+  to the new 'search.exclude_tags' option in the Notmuch config file.
+
+  This behaviour can be overridden by explicitly including an excluded
+  tag in your query, for example:
+
+    notmuch search $your_query and tag:$excluded_tag
+
+  Existing users will probably want to run "notmuch setup" again to add
+  the new well-commented [search] section to the configuration file.
+
+  For new configurations, accepting the default setting will cause the
+  tags "deleted" and "spam" to be excluded, equivalent to running:
+
+    notmuch config set search.exclude_tags deleted spam
 
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