docs: update list of contributors

PR-URL: 	#2027
Reviewed-by: Athan Reines <kgryte@gmail.com>
Signed-off-by: stdlib-bot <82920195+stdlib-bot@users.noreply.github.com>
Co-authored-by: Philipp Burckhardt <pburckhardt@outlook.com>

Author: stdlib-bot

CONTRIBUTORS

@@ -64,6 +64,7 @@ Ryan Seal <splrk@users.noreply.github.com>
 Sai Srikar Dumpeti <80447788+the-r3aper7@users.noreply.github.com>
 Seyyed Parsa Neshaei <spneshaei@users.noreply.github.com>
 Shashank Shekhar Singh <shashankshekharsingh1205@gmail.com>
+Shivam <11shivam00@gmail.com>
 Shraddheya Shendre <shendreshraddheya@gmail.com>
 Shubham Mishra <shubh622005@gmail.com>
 Snehil Shah <130062020+Snehil-Shah@users.noreply.github.com>