updated readme

week2/OutLab/unagi/readme.txt

-Refernces:
+Keshav Agarwal (203050039 - keshavagarwal) - Problem-1,5
+
+GIT Link: 
+https://git.cse.iitb.ac.in/keshavagarwal/unagi/tree/master/week2/OutLab/unagi
+
+References:
 https://makandracards.com/makandra/38045-bash-print-columns-a-table
 https://man7.org/linux/man-pages/man1/ls.1.html
 https://stackoverflow.com/questions/30123463/hide-wget-output-in-linux
 https://www.cyberciti.biz/faq/grep-regular-expressions/
 https://man7.org/linux/man-pages/man1/grep.1.html
+https://askubuntu.com/questions/89995/bash-remove-first-and-last-characters-from-a-string
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