[docs] minor updates as the API shifted with 0.6.0

Author: heckj

Sources/Automerge/Automerge.docc/Curation/Document.md

@@ -4,7 +4,7 @@
 
 ### Creating or loading a document
 
-- ``init(logLevel:)``
+- ``init(textEncoding:logLevel:)``
 - ``init(_:logLevel:)``
 - ``LogVerbosity``
 

Sources/Automerge/Document.swift

@@ -33,7 +33,7 @@ public final class Document: @unchecked Sendable {
 
     /// A publisher that emits after the document has changed.
     ///
-    /// This publisher and ``objectWillChange()`` are always paired. Unlike that
+    /// This publisher and `objectWillChange()` are always paired. Unlike that
     /// publisher, this one fires after the document update is complete, allowing you to
     /// read any changed values.
     ///