added citation in readme

README.md

@@ -92,4 +92,15 @@ _______________________________
         resample_22050              resampling rate of 22050 Hz
         resample_44100              resampling rate of 44100 Hz
         resample_8000               resampling rate of 8000 Hz
-        lpf_7000                    low pass filtering with a cut-off frequency of 7 Khz
+        lpf_7000                    low pass filtering with a cut-off frequency of 7 Khz
+
+**Citation**
+```
+@inproceedings{ali2024audio,
+  title={Is Audio Spoof Detection Robust to Laundering Attacks?},
+  author={Ali, Hashim and Subramani, Surya and Sudhir, Shefali and Varahamurthy, Raksha and Malik, Hafiz},
+  booktitle={Proceedings of the 2024 ACM Workshop on Information Hiding and Multimedia Security},
+  pages={283--288},
+  year={2024}
+}
+```