Update README.md

README.md

@@ -67,12 +67,13 @@ class Application {
   public static void main(String[] args) {
     Set<DataEntry> first = nucleoDB.getTable(Author.class).get("name", "test", new DataEntryProjection(){{
       setWritable(true);
+      setLockUntilWrite(true);
     }});
   }
 }
 ```
 
-##### Write data
+##### Create data entry
 
 ```java
 class Application{
@@ -83,14 +84,29 @@ class Application{
 }
 ```
 
+##### Update data entry
+
+```java
+class Application{
+  public static void main(String[] args) {
+    // read data 
+    // AuthorDE author = AuthorDE()
+    // author.copy(AuthorDE.class, true); // lock entry for updating
+    author.getData().setName("Edgar Allen Poe");
+    nucleoDB.getTable(Author.class).saveSync(author);
+  }
+}
+```
+
 ##### Delete data
 
 ```java
 class Application{
   public static void main(String[] args) { 
     // read data 
-    // var author = AuthorDE()
+    // AuthorDE author = AuthorDE()
+    // author.copy(AuthorDE.class, true); // lock entry for deletion
     nucleoDB.getTable(Author.class).deleteSync(author);
   }
 }
-```
+```