Update Sources/Automerge/Document.swift

Co-authored-by: Joseph Heck <[email protected]>

Author: miguelangel-dev

Sources/Automerge/Document.swift

@@ -685,7 +685,6 @@ public final class Document: @unchecked Sendable {
     /// Retrieves the absolute index-based position for the list or text object and point in time you provide.
     ///
     /// Use this method to convert a cursor into an absolute index-based position at a previous point in time.
-    /// a cursor back into an absolute index-based position.
     ///
     /// - Parameters:
     ///   - obj: The object identifier of the list or text object.