add more links

Author: fishercoder1534

README.md

@@ -8,4 +8,8 @@ File -> New -> Project from Version Control -> GitHub, then configure JDK8, then
 |      Package/Theme   |   Code
 |----------------|---------------
 |Avro|[Avro code](../master/src/main/java/avro)
+|Java annotations|[annotations](../master/src/main/java/customize_annotations_generics_wildcards_examples)
+|Design Patterns|[Design patterns](../master/src/main/java/designPatterns)
+|Java Exceptions|[exceptions](../master/src/main/java/exceptionsCanBeSelfDefined)
+|Some interview questions|[questions](../master/src/main/java/interviewQuestions)
 |Java 8 tutorials|[Java 8](../master/src/main/java/java8tutorials)