Update README.MD

Author: janakarana

README.MD

@@ -35,6 +35,17 @@ In addition, for any work that utilizes the Mie Simulator GUI software, cite the
 
 __Janaka C. Ranasinghesagara, Carole K. Hayakawa, Lisa M. Glover, Vasan Venugopalan, "MieSimulatorGUI: A user-friendly tool to compute and visualize light scattering by spherical dielectric particles," Journal of Open Source Software 11(118), 9551 (2026) https://doi.org/10.21105/joss.09551__
 
+<pre><code>@article{Ranasinghesagara2026,
+  author  = {Ranasinghesagara, Janaka C. and Hayakawa, Carole K. and Glover, Lisa M. and Venugopalan, Vasan},
+  title   = {{MieSimulatorGUI}: A user-friendly tool to compute and visualize light scattering by spherical dielectric particles},
+  journal = {Journal of Open Source Software},
+  year    = {2026},
+  volume  = {11},
+  number  = {118},
+  pages   = {9551},
+  doi     = {10.21105/joss.09551}
+}</code></pre>
+
 ## Software
 _Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:_
 
@@ -50,3 +61,4 @@ Copyright ©2026 [Virtual Photonics Technology Initiative](https://virtualphoton
 
 
 
+