Update README.md

Author: KateStar-git

README.md

@@ -1,2 +1,9 @@
 # Spring-MVC-Validation
 Student form with name, last name, postal code and customer code validation
+
+# Required fields
+# @InitBinder
+# Validaton a number range
+# Regular expressions
+# Make Integer fields required; String for Int fields
+# Custom validation