2 src/main/java/Duke.java files are present

[Yuvaraj0702]

2 src/main/java/Duke.java files are present 1 in src/main/java/Duke.java and 1 in the ip-master/src/main/java/Duke.java file. I have been working on the ip-master/src/main/java/Duke.java file till level 4 after which I copied the file over to src/main/java/Duke.java. This is just to inform that previous commits have changes which can be found in the ip-master/src/main/java/Duke.java file and from now on the ip-master file will be deleted and all changes will be done on src/main/java/Duke.java. This issue was caused by IntelliJ automatically generating a file template and was just noticed and fixed.