add jpa module

jpa/README.md

@@ -0,0 +1,29 @@
+# spring-boot-validation-examples
+
+```kotlin
+implementation ("org.springframework.boot:spring-boot-starter-validation")
+```
+
+## Annotations
+
+* @Digits
+* @Email
+* @Max
+* @Min
+* @Negative
+* @NotBlank
+* @NotEmpty
+* @NotNull
+* @Null
+* @Pattern
+* @Positive
+* @Size
+
+https://docs.jboss.org/hibernate/beanvalidation/spec/2.0/api/
+
+
+
+---
+developed by Elex
+
+https://www.elex-project.com