Update README.md

README.md

-Problem 1-2 : Amit Kumar
+Shubham Pyase (203050116-)- Problem 4
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+Sarvesh Pandey (203050021-) Problem 2
+Mayur Rathod(203050088-) Problem 3,5,6
+Amit Kumar (203050053-akiitb)- Problem 1
+Munna Paswan (203050120-)- Problem 
+
+Git Link
+https://git.cse.iitb.ac.in/akiitb/CS699_outlab2
+
+
+
+Refrences:
+
+https://www.gnu.org/software/grep/manual/grep.html#Regular-Expressions
+https://unix.stackexchange.com/questions/37508/in-what-order-do-piped-commands-run
+https://linuxize.com/post/regular-expressions-in-grep/
+https://www.geeksforgeeks.org/diff-command-linux-examples/
+https://www.tomshardware.com/how-to/customize-linux-terminal
+https://www.cyberciti.biz/faq/unixlinux-sed-case-insensitive-search-replace-matching/
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