refact: renamed property to link

Author: OZoneGuy

org-ql-search.el

@@ -296,8 +296,9 @@ Valid parameters include:
   :ts-format  Optional format string used to format
               timestamp-based columns.
 
-  :not-links  Optional boolean.  If non-nil, don't make headings
-              into links.
+  :link     Optional flag. Defaults to `t`. When non-nil, links
+            are displayed as links, otherwise they are displayed
+            as plain text.
 
 For example, an org-ql dynamic block header could look like
 this (must be a single line in the Org buffer):