added license and reference to license in README.md file

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2022 Joana Cabral
+
+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:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -192,3 +192,11 @@ For more detailed descriptions and applications, please refer to the following w
 > *Wan-wa Wong, Joana Cabral, Riddhi Rane, Ronald Ly, Morten L. Kringelbach and Jamie D. Feusner (2021). [Effects of visual attention modulation on dynamic functional connectivity during own-face viewing in body dysmorphic disorder](https://doi.org/10.1038/s41386-021-01039-w). **Neuropsychopharmacology***
 
 > *Ricardo Magalhães, Maria Picó-Pérez, Madalena Esteves, Rita Vieira, Teresa C. Castanho, Liliana Amorim, Mafalda Sousa, Ana Coelho, Henrique M. Fernandes, Joana Cabral, Pedro S. Moreira and Nuno Sousa (2021). [Habitual coffee drinkers display a distinct pattern of brain functional connectivity](https://doi.org/10.1038/s41380-021-01075-4). **Molecular psychiatry***
+
+---
+
+## License & copyright
+
+© Joana Cabral, University of Minho
+
+Licensed under the [MIT License](LICENSE).