Update documentation/src/main/asciidoc/introduction/Entities.adoc

Co-authored-by: Gavin King <[email protected]>

Author: NathanQingyangXu

documentation/src/main/asciidoc/introduction/Entities.adoc

@@ -1486,7 +1486,7 @@ Let's pause to remember the annotations we've met so far.
 | Annotation | Purpose | JPA-standard
 
 | `@GeneratedValue` | Specify that an identifier is system-generated | ✔
-| `@SequenceGenerator` | Define an id generated backed by a database sequence | ✔
+| `@SequenceGenerator` | Define an id generator backed by a database sequence | ✔
 | `@TableGenerator` | Define an id generated backed by a database table | ✔
 | `@IdGeneratorType`  | Declare an annotation that associates a custom `Generator` with each `@Id` attribute it annotates | ✖
 | `@ValueGenerationType` | Declare an annotation that associates a custom `Generator` with each `@Basic` attribute it annotates | ✖