rework dependency types code

Simplify, change default content depends number to 1,
change interface to make more sense.

1 files changed, 9 insertions, 6 deletions

diff --git a/doc/plugins/write.mdwn b/doc/plugins/write.mdwn
index c244c1f2f..73db6f12a 100644
--- a/doc/plugins/write.mdwn
+++ b/doc/plugins/write.mdwn
@@ -613,12 +613,15 @@ generating a link to a page.
 
 Makes the specified page depend on the specified [[ikiwiki/PageSpec]].
 
-Additional named parameters can be passed, to indicate what type of
-dependency this is.
-
-Currently, only a "content" parameter is specified. If set to 0, the
-dependency does not involve the content of pages matching the PageSpec, but
-only their existence.
+By default, dependencies are full content dependencies, meaning that the
+page will be updated whenever anything matching the PageSpec is modified.
+This default can be overridden by additional named parameters, which can be
+used to indicate weaker types of dependencies:
+
+* `presence` if set to true, only the presence of a matching page triggers
+  the dependency.
+* `links` if set to true, any change in the text of links on a matching page
+  triggers the dependency
 
 #### `pagespec_match($$;@)`