DOC-3205: Update docs with Blazor changes (#3702)

Author: spocke

modules/ROOT/partials/integrations/blazor-tech-ref.adoc

@@ -123,7 +123,7 @@ Set the editor to inline mode.
 
 === `Disable`
 
-Set the editor to readonly mode.
+Sets the editor to a disable state.
 
 *Type:* `+Boolean+`
 
@@ -139,6 +139,24 @@ Set the editor to readonly mode.
 <button @onclick="@(() => disable = !disable)">Toggle</button>
 ----
 
+=== `Readonly`
+
+Sets the editor to readonly mode.
+
+*Type:* `+Boolean+`
+
+*Default value:* `+false+`
+
+==== Example using Readonly
+
+[source,cs]
+----
+<Editor
+  Readonly=@readonly
+/>
+<button @onclick="@(() => readonly = !readonly)">Toggle</button>
+----
+
 === `JsConfSrc`
 
 Use a JS object as base configuration for the editor by specifying the path to the object relative to the window object.