doc: update readme

README.md

@@ -6,10 +6,10 @@ This repository contains the code used in **A Deep Learning-based Radiomics for
 
 **Authors**: [Márcus V. L. Costa](https://github.com/usmarcv), [Erikson J. de Aguiar](https://github.com/eriksonJAguiar), [Lucas S. Rodrigues](https://github.com/lsrusp), [Jonathan S. Ramos](https://github.com/JonathanRamos), Caetano Traina Jr. and Agma J. M. Traina
 
-**Conference**
+### Conference
 > The 36th IEEE International Symposium on Computer-Based Medical Systems (IEEE CBMS2023) will be held at the University of L’Aquila, L’Aquila, Italy, from Thursday 22th to Saturday 24th of June 2023.
 
-**Proposed Overview**
+### Proposed Overview
 
 <p align='center'>
   <img src="./workflow.png">